SUMMER MEMORIES + DLC WALKTROUGH



I put this guide together as other guides didn’t answer the questions I had and to clarify information so it is actually useful.
If you want to avoid spoilers, this guide is NOT for you.

The guide is complete with the important information you need. If you have any questions post them in the comments and I will see if I can clear up the issue for you.

Introduction

 
The game lies to you right from the start, you don’t have 30 days as you lose the first and last day, so you have four seven day weeks to work with. The game will take at least two play throughs, probably more, to accomplish everything, so don’t think you’re going to get it all done the first time around. There are 10 different endings. 
 
 

The Interface

 
On the right side of the screen you have the status of the girls, your cash on hand, and a map of the house. 

  1. Girl’s name 
  2. Affection level 
    a. Affection Levels are 20 points each 
    b. You cannot advance to the next level without maxing out Homework and the going through an event 
  3. Homework level 
    a. Homework Resets every time the Affection Level advances 
    b. Homework max is 100, but you will get Memory Point credits if you go higher 
  4. Cash on hand

Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Below the girl’s status is a map of the house. You can click on the icon of a girl to jump right to their location. The Blue head is your uncle. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
If you want to move into a room that is not occupied you will need to use the arrows in the upper left. 

  1. Current location and navigation arrows 
  2. Number of Action Points left 
  3. Current date and day of the week 
  4. Number of days remaining

Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
You start off with 3 action points. You gain an additional action point each weekend after the family trip. You can also purchase additional two action points in the Coax Skills tree for 100 Skill Points each. The action points are somewhat misleading. Some actions use actions point other will complete your time slice. Ideally you want to use all of your action points, except the last one, and then use the last action point to perform an action that completes a time slice. 
 

Free ActionsAction PointComplete Time Slice
ShoppingCoax ActionTalk
Collecting BugsPlace Bug JellyHomework
Post to DwitterFishing
Changing LocationTake a bath
Nap

 
 
 

Inventory

 
I was playing over 20 hours before I accidentally found out how to access my inventory. 
 
When you are at a location, does not work on the main map. Left click on your character in the lower left. Save and Load options are also available from this menu and will save and load at your current location. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Select Items from the menu. This will show you your inventory. You can then select Items (the most useful option), Insects, Fishes, and Key Items (the panties of girls you’ve had s*x with) 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Select Items then the item you want to use. Items you cannot use, like the Succubus Vase (Gift only) will be greyed out. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
 

Homework

 
There are three different Homework assignments you must do to advance your relationships: Yui (Math), Rio (Independent Study), and Miyuki (Wash Dishes). You must be in a room associated with Home Work, the Kitchen (Dishes), Rio’s Room (Math), Yui’s Room (Independent Study). You will see a green icon with a pencil if you can do Home Work. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
You can only do Homework if the Girl that it is associated with is available. If she is in the Restroom or Sleeping, you will not be able to do the Home Work associated with her. 
 
Homework Exemption Cert do not allow you to skip Homework at home. They are used for the Menko, Treasure Fishing, and Track and Field races. You can obtain a Homework Exemption Cert for 1000 Yen from the stranger in the school equipment room at night or by fishing. When you start the Homework session you will be given the option to use the Homework Exemption Cert. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Washing Dishes 
 
You can use the Foaming Soap, purchased from the Sweets Shop for 150 yen, from your inventory to earn an extra 2 points per dish. Once used the Foaming Soap is good for the rest of the day. 
 
You use the left button on the mouse to place the gauge where you want it. You can use the right button to lock the cleaning level. There are three sections the bottom section of cleaning effort the lowest is one, the middle two, and the top three. In order to not break the dishes you need to finish cleaning with 0. So, if you start on a dish with an even number you can scrub at level 2 and it will not break. If you start a dish with an odd number the dish will break if you scrub it at level 2. I recommend locking at level 2 and then either going to level 3 or level 1 to even it out and then lock back to level 2, using this strategy you can normally wash 10 dishes per attempt. 
 
Math 
 
You can use the Winning Pencil, purchased from the Sweets Shop for 150 yen, from your inventory to earn an extra 2 points per correct answer. Once used the Winning Pencil is good for the rest of the day. 
 
You have approximately five seconds to select the correct answer. Use the left button to move the pointer to the correct answer. The right mouse button can be used to lock the pointer. Use the middle mouse button to select the answer. I found that using the left button to move the pointer to one answer above and then letting it drop to the correct answer was a better option than using the lock function. The reason for this is that at zero it does not point to the bottom answer. 
 
Independent Study 
 
You can use the Final Cutter, purchased from the Sweets Shop for 150 yen, from your inventory to double the points on the catch report. Once used the Final Cutter is good for the rest of the day. 
 
I found this the easiest of the homework, provided you are collecting bugs on a regular basis. 
 
Collecting Bugs 
 
Collecting Bugs is the recommended way to advance Independent Studies until you get the hang of fishing as there is no chance involved. Collecting Bugs will also allow you to generate income starting on Day 16, by selling them to Suzuka. Place the Bug Jelly and come back the next day to collect. You need to purchase Bug Jelly for 50 Yen. You then place the Bug Jelly on a tree and come back the next day to collect your bug(s). There are three trees where you can use the Bug Jelly, you will catch level 1 and 2 bugs here. The first tree is by the Dry Riverbed and the other two are in the Mountain, where you will catch level 2, level 3 and level 4 bugs. Placing the Bug Jelly will use one Action Point per tree. Collecting the bugs is a free action. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
To get to the Beach fishing location you go left from the first Beach section. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Fishing 
 
It is recommended that you hold off on fishing until later in the game as it is a huge resource drain and not a guaranteed outcome, 10 Stamina and 1 Action Point per attempt. You can fish at the Dry Riverbed or the Beach. At the Dry Riverbed you will catch Level 1 and Level 2 fish. At the Beach you will catch Level 2, Level 3 and Level 4 fish. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
When you catch a fish you will see it on your bar. Use the left mouse button to raise the bar so that it is in the band where the fish is, the fish will move up and down the bar. When you are in the bar area press the middle mouse button to attempt to catch the fish. It normally takes three to five attempts to catch the fish. If you don’t catch the fish you will have wasted one bait and one Action Point. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
 

Menko

 
You play Menko to unlock Akari. This is a very long path. 
 
Each Menko battle takes one Action Point. You can do a group of them together, or one a day if you want. Menko battles are only available in the Morning and Afternoon time slices. You must own a Menko card, purchase from the Sweets Shop for 500 yen. All of the cards function the same and the only difference is the picture on the card. Your HP for the game are equal to your Stamina (Maximum 1,000) 
 
The match begins by flipping to determine who goes first. Get used to losing, it sure isn’t by chance. 
 
Menko – Part One (First four battles can be completed in the same time slice) 
 
Menko battle one vs Boy A 
Menko battle two vs Boy B 
Menko battle three vs Girl 
Menko battle four vs Mentai 
Talk to Mentai in the Second Park at Night a couple of days later 
 
Menko – Part Two 
 
Mentai returns to the Second Park and you need to beat him on three different days. After you beat Mentai the third time he tells you that Akari will be returning tomorrow. 
Go to Second Park in the Afternoon to face off with Akari, you can’t loose this match, Mentai will stay at 1 HP Left until you win. After this battle Akari will be unlocked. 
 
 

Gacha

 
You can purchase Gachas in the Sweets Shop using the vending machines to the right of S 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
The cost is 100 yen and 1 Action Point per gacha. The gacha you get is random. 
 
After you have purchased a Gacha the Gacha Gach Man will approach you with a deal. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
If you provide Gacha Gacha Man with all 12 Gachas he will give you a reward. As the Gacha you receive from the machine is random, you will have to purchase many to get the 12 required for Gacha Gacha Man. Gacha Gacha Man appears outside of the Sweets Shop in the Evening. As a reward you receive a Sketchy DVD. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
In order to watch the DVD you will need the Nightwalker skill. At night time click on Night to advance the time and you will be given the option to Sleep with someone or Wander around after dark. Select Wander around after dark. Go to the Living Room and click on the Television to watch the DVD. After you have watched the DVD click on Late Night and pick the girl you want to sleep with. 
 
Here are the 12 Gacha and in their number order. 
 

NumberNameImage
1.Demon KingSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
2.SakiSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
3.PrimSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
4.BokuSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
5.TomoeSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
6.Yoshigawa-senseiSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
7.MinoriSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
8.MinatoSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
9.LilimSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
10.YuiSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
11.RioSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
12.MiyukiSummer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]

 
 
 

Dwitter

 
After you return home from the Barbecue the girls tell you about Dwitter. You can post on Dwitter once per day using the computer in either Yui or Rio’s room. You have three posting options: 

  1. Do your best! 
  2. I’ll do my best at s*x! 
  3. I’ll go have fun outside!

It doesn’t matter which posting you select. The fourth time you post to Dwitter you will get a notification from Szrin with a picture. 
 
Post two more times and you will get a notice from Szrin with a picture of her panties. 
 
Post again and you get another picture of Szrin with a stuff bear missing an eye covering her privates. Hmm, that bear looks familiar. Go to the Sweets Shop and click on the bear that is missing an eye. Post again on Dwitter and you will get a notice that Szrin is retiring. 
 
Go to the Sweets Shop and talk to Shizuku. 
 
 

Recommended First Play Through

 
These are to provide general guidance as some of the girls movements are random and you will need to adjust. 
 
August 2 
 
You start with the Handj*b, Stop Guage, and Mast*rbate skills. 
 
Save your 30 Skill Points and go To Next Day 
Go to the Sweets Shop and purchase: 

  • Winning Pencil x 1 
  • Final Cutter x 1 
  • Foaming Soap x 1 
  • Bug Jelly x 1

Go to Dry Riverbed and place Bug Jelly on Tree. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Do either the Dishes or Math Homework. Remember a perfect score is worth another 300 Yen and you will gain +3 Affection with the girl. 
Take the money you earned from doing your Homework and go back to the Sweets Shop. Purchase at least two more Bug Jelly. 
Go to the Mountain and place the Bug Jelly on the two trees. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Go back home and do either the Dishes or Math Homework. Best to do the same one, so you can level up the girl. 
 
Go to the Mountain and then go Up to the Shrine. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Enter the Cave. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Click on the Offertory box. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Put in 5 yen. You will need to do this 20 times to allow you to unlock all of the H Scenes. 
 
Sleep with Miyuki – 69 scene Miyuki and uncle 
 
Learn one of the Coax Skill – Homework Skills. I recommend Homebody, the dish washing skill. 
 
August 3 
 
You learn about Menko. You can pursue the Menko side quest now, but I recommend leaving it for a later play through as it is long and costs 500 yen to start. 
 
I recommend doing your bug collecting in the morning as most of the girl advance events are later in the day. 
 
So, go to the Mountain and collect two bugs and place two more Bug Jelly. You want to save one Action Point for Homework. 
 
If you haven’t maxed out the Homework you were working on yesterday, do that. If you have maxed it out, do the other one. 
 
Go back to the Offertory box and make your 5 yen donation. 
 
Collect the bugs from the Dry Riverbed and place more Bug Jelly. 
 
Do more Homework, again try to get one to 100 before moving on to the next one. 
 
Talk to one of the girls, if her Affection is < 20. 
 
Sleep with Yui. 
 
Learn another of the Coax Homework Skills. Again, I prefer Househusband as washing dishes seems to advance the slowest for me. If you are having issues with the Math Homework select Math Nerd or Math Genius. After you have all four for Math and Dishes get Bug-Catcher and Bug-Whisperer. 
 
August 4 
 
Go to the Mountain and collect two bugs and place two more Bug Jelly. You want to save one Action Point for Homework. 
 
If you have maxed out Math and Dishes do Independent Study with Rio, otherwise try to max out the other two. 
 
About this time your Lust should be 100 and you’re going to have an accident in your pants. This will cost you Stamina and Time. 
 
Collect your bugs from the Dry Riverbed and Make your 5 yen donation. 
 
August 5 
 
Aunt Miyuki finds your underwear. 
 
Continue your daily tasks, collect bugs, make donation, do homework. When a girl’s Affection is maxed out and Homework is 100 or higher you want to focus on the next girl until the girl levels up and Homework is reset. 
 
August 6 
 
Everything continues as it has been. 
 
August 7 
 
Go on the Family Outing for a barbecue. You will have an opportunity to select a scene with one of the girls, depending on what you have accomplished with her so far. 
 
You will get back at Night and your Action Points have increased to 4. 
 
Make your daily offering and collect your bugs. 
 
August 8 
 
You learn about Dwitter. Every day you need to post on Dwitter now, there is no action point cost. I recommend doing it in the morning so you don’t forget about it. You need to go to Yui’s or Rio’s room and use their computer to post on Dwitter. 
 
You have three posting options: 

  1. Do your best! 
  2. I’ll do my best at s*x! 
  3. I’ll go have fun outside!

 
It doesn’t matter which option you pick. 
 
About now you should have both skills for Math, Dishes, and Bugs. Time to start working on the rest of your skills. I recommend Bath Rest and For You! as your first purchases. Bath Rest allows you to take a bath when no one else is in the shower and gain +50 Stamina, it does prevent you from taking a bath with someone else that day. For You allows you to give two gifts per person, per day. 
 
August 9 
 
Remember to add Dwitter to your morning routine. 
 
August 10 
 
You find out about the Track and Field Club. You need to boost your Stamina to join. You need 145 Stamina to join. If you want to boost your Stamina you will need to climb the Mountain. You will gain 3 Stamina per Action point and it will you must have 51 stamina to climb. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
August 11 
 
Continue your normal routine 
 
August 12 
 
You learn about the offering box. Good thing you’ve being making your daily offerings for a while now. 
 
If you’ve been doing your daily Dwitter postings you get a Notification and a picture from Szrin. 
 
August 13 
 
You might want to start learning the Coax Fishing skills now. 
 
August 14 
 
Family Outing – Hiking the Mountain. Again you will be given an opportunity to select a scene with one of the girls, depending on what you have accomplished with them up to this point. 
 
You will return at night so that you can do your daily tasks. 
 
If you have the Skill Points you might consider using them on Give it Your All, to raise your Stamina by 10. 
 
August 15 
 
You find out about the creepy guy in the school warehouse. If you visit the School Warehouse at Night you can purchase these items from him for 1,000 yen each. For the first run through I recommend purchasing the Glittering Boxes and maybe some Homework Exemptions. 
 
Glittering Box – +20 Affection 
Super Lewd Magazine – Vigilance Level 30 as a gift, MP +50 
Homework Exemption Certificate – Lets you skip certain mini-games 
 
August 16 
 
Find out about the woman climbing trees at the Mountain – Suzuka. 
 
You can sell all of your bugs to Suzuka, this doesn’t seem to affect your Independent Studies with Rio. By now you should have at least one of each bug level. Now is the time to start fishing. Once you have all four fish levels and sell them to Suzuka, you will unlock Suzuka. 
 
August 17 
 
Continue your daily chores. 
 
August 18 
 
Today you learn about the Treasure of the Sea – Mizuki. 
 
August 19 
 
Continue your daily chores. 
 
August 20 
 
Continue your daily chores 
 
August 21 
 
Family Outing – The Beach 
 
Return at Night 
 
August 22 
 
If you’ve been doing your Dwitter daily you should have gotten the picture of the Bear by now. Go to the Sweets Shop and click on the Bear. 
 
August 23 
 
Post on Dwitter again 
Go see Shizuku at the Sweets Shop 
 
August 24 
 
You find out that you can catch more than just fish. 
 
August 25 
 
August 26 
 
August 27 
 
August 28 
 
Fireworks at Night 
 
August 29 
 
Your last day. Time to finish anything you want up. Collect all of your bugs, don’t bother putting down any Bug Jelly. Sell them all to Suzuka. 
 
Save your game if you want to be able to choose all of the girls in the house. 
 
August 30 
 
Time to go home. Pick one of the girls in the house for your “ending”. 
 
If you managed any of the rest of the girls when you go to leave your Mother will ask, “Have you done everything you wanted?”. If you answer Not yet you can go visit all of the girls you have completed. When you are finished Return Home to finish the game. 
 
I started working on the girls outside of the house and was able to purchase all Skills and complete Kagami, Mizuki, Suzuka, and Shizuku. Most of this work was done starting August 22. 
 

Subsequent Play Throughs

 
After your first play through you are asked if you want to load your clear data. If you answer Yes to this question you can start the game with the progress unlocked from previous games. The options are broken down as follows: 

  • Keep your progress on heroines, skills, and status 
  • Carry over the progress gained on the main heroines (Yui, Rio, and Miyuki) 
  • Carry over the main heroines’ erotic statuses (Lewdness, Service, and Perversion) 
  • Carry over the progress gained on the sub heroines (Akari, Kagami, Mizuki, Suzuka, and Shizuku) 
  • Carry over your skills 
  • Carry over the main character’s stats (Highest Stamina, Lust, and Money) 
  • Start with multiple copies of each item

This makes finishing the things that you missed much easier. It also makes the side girls available at the start of the game and you do not need to wait for them to show up, provided you had a relationship with them. You can mix and match the options to make accomplishing what you want/need easier. 
 
 

Skills

 
Skills come in two classes, H Skills and Coax Skills. H Skills are about interacting with the girls. Coax Skills are everything else. 
 
You start with three skills already learned: 

  • Handj*b 
  • Stop Gauge 
  • Mast*rbate

I recommend you start learning the Homework skills at the bottom of the Coax Skills page ins this order. 

  1. Homebody 
  2. Househusband 
  3. Math Nerd 
  4. Math Genius 
  5. Bug-Catcher 
  6. Bug-Whisperer 
  7. Amateur Angler 
  8. Skilled Angler

You can change the order for the Homework you are focusing on, or the Homework you have trouble doing. The reason for this is so that you can max out the Homework for a girl as quickly as possible. 
 
After you have the Homework skills purchased Bath Rest and For You! from the Coax Skills are recommended. Next up is Nightwalker, this is needed to learn the Bathroom Assault! skill after you fish up the video. 
 
After that it is pretty much up to you. After you have purchased all of the skills you can still purchase Give It Your All and Gimmie from the Coax Skills daily. Stamina is required for both the Track and Field and Menko. 
 
Here are the skill sheets with the names of the skills and their costs listed. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
 

S*x

 
When you have s*x with a girl you can raise their Lewdness, Service, and Perversion levels. Satisfaction is limited to the current session. If you get their Satisfaction to 100 or higher you will receive a gift. The gift varies. Normally getting to 100 or higher Satisfaction will require at least 100 Lust and 101 Stamina. If you don’t get to 100 and still have remaining Lust and Stamina you can continue. To exit click on your character in the lower left and select Naughty scene over. If you need more Stamina or Lust and have an item you can use it by selecting Item. 
 
Coffee Milk +20 Stamina +1 Memory Point 
Balloon Gum +10 Lust 
Core Drink +30 Stamina +15 Lust 
Secret Extract +50% Stamina 
Turtle Extract +50% Lust 
 
The trait that you will increase for the girl will depend on the position, allowing you to focus on what you would like to raise. 
 

Stat to raisePositions
LewdnessMissionary, Doggy-Style, C*wgirl, Laying Doggie 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
ServiceHandj*b, Blowj*b, T*tjob, Br*ast-feeding handj*b 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]
PerversionSitting s*x, Standing s*x, Sixty-nine, Toilet position, Piledriver 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021]

 
If your Lust is ≥ 50 and you sleep with a girl who has Lewdness, Service and Perversion at 200 she will wake you up with a blow job in the morning. 
 
 

Thre*some and Foursome

 
The Thre*some and Foursome aspect of the game were the most unclear portions for me. It keeps showing as a H Skill to purchase, when in reality it is earned. 
 
The basic concept is that you need to increase Yui and Rio’s Vigilance Level while keeping Miyuki and your Uncle’s (Masakazu) Vigilance Levels low. You can increase the girl’s Vigilance Level by giving them the Super Lewd Magazine, this will increase their Vigilance level by 30. If you give the Super Lewd Magazine to your Uncle it will reduce his Vigilance level by 30. You can check your Uncle’s Vigilance Level by clicking on him, just like the girls. 
 
The easiest way to accomplish the Thre*some is to work on it when your Uncle is not home. Give Yui or Rio the Super Lewd Magazine to raid their Vigilance Level to 75+. Then have s*x with the other sister until the girl you gave the Super Lewd Magazines explodes and comes in and makes it a Thre*some. Thre*some is not exactly accurate for what happens, you have s*x with one girl while the other girl watches. You can switch girls by clicking on the girl watching. 
 
Now that you have the Thre*some, you probably have raised Miyuki’s Vigilance Level too, continue your Thre*some until Miyuki’s Vigilance Level Explodes and she comes in to make it a Foursome. S*x is the same as the Thre*some, one girl interacts with you and the other two watch. 
 
After a girl is involved in a Thre*some or Foursome their Vigilance Level is locked to Zero. 
 
Once you have unlocked Threesomes or Foursomes the option will appear in your Overworld Skills bar when you are in the Living Room, Yui’s Room, Rio’s Room, or the Couple’s Room. No one has to be present in the room, just press the button. When you select a Thre*some you can select the girls you want to be involved, provided you have unlocked the Foursome. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Once you have unlocked Thre*some and/or Foursome you can have s*x while another girl is in the room, provided they are part of what you have unlocked, this includes sleeping s*x. If you select to have s*x with a girl and another unlocked girl is in the room it will automatically start a Thre*some. 
 
 

Offertory Box

 
The Offertory Box is located in a Cave in the mountains. Go up from where you start in the Mountains. Enter the cave and make a 5 Yen donation. There is an Action Point cost to make the offering. After you make 20 donations a Red Button will appearing in the Living Room if you go to the Memories option on the main menu. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Pressing the button will unlock all of the H content. You will be given the option to Press switch or Don’t (in case you change your mind or press on accident). 
 
 

Yui

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Yui 
 
Yui is your youngest cousin and will help you with your Math Homework. 
 
All progression events are automatic when you reach the required Affection and Homework levels and the trigger is reached. If there are multiple progressions available at the some time you will only get one per day. Progressions will not occur during the Family Outing. 
 
Yui’s progression: 
 
Affection = 20, Homework ≥ 100, Afternoon 
Affection = 40, Homework ≥ 100, Afternoon -> Unlocks Service 
Affection = 60, Homework ≥ 100, Evening 
Affection = 80, Homework ≥ 100, Afternoon -> Unlocks Penetration 
Affection = 100, Homework ≥ 100, Afternoon -> Unlocks Yui’s ending 
 
Scenes Available 
 
2. – Affection H Scene 
4. – Affection H Scene 
6. – Affection H Scene 
8. – Affection H Scene 
10. – Affection H Scene 
Yui: BBQ 
Yui: Hiking 
Yui: Swimming 
Yui: Morning BJ 
Lewdness 100 
Lewdness 200 (Cosplay Gym Uniform) 
Service 100 
Service 200 
Pervertedness 100 
Pervertedness 200 
(29th) Foursome 
 
 

Rio

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Rio 
 
Rio is your oldest cousin, has Service unlocked from the start of the game, and will help you with your Independent Studies Homework. 
 
All progression events are automatic when you reach the required Affection and Homework levels and the trigger is reached. If there are multiple progressions available at the some time you will only get one per day. Progressions will not occur during the Family Outing. 
 
Rio’s progression: 
 
Affection = 20, Homework ≥ 100, Evening 
Affection = 40, Homework ≥ 100, Evening -> Unlocks Penetration 
Affection = 60, Homework ≥ 100, Afternoon 
Affection = 80, Homework ≥ 100, Afternoon 
Affection = 100, Homework ≥ 100, Sleep with her -> Unlocks Rio’s ending 
 
Scenes Available 
 
2. – Affection H Scene 
4. – Affection H Scene 
6. – Affection H Scene 
8. – Affection H Scene 
10. – Affection H Scene 
Rio: BBQ 
Rio: Hiking 
Rio: Swimming 
Rio: Morning BJ 
Lewdness 100 
Lewdness 200 
Service 100 
Service 200 (Cosplay Waitress Uniform) 
Pervertedness 100 
Pervertedness 200 
(29th) Foursome 
 
 

Miyuki

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Miyuki 
 
Miyuki is your father’s sister, your aunt, and will help you with your Homemaker Homework. 
 
All progression events are automatic when you reach the required Affection and Homework levels and the trigger is reached. If there are multiple progressions available at the some time you will only get one per day. Progressions will not occur during the Family Outing. 
 
Miyuki’s progression: 
 
Affection = 20, Homework ≥ 100, Sleep with her once, there is a scene in the Kitchen in the Afternoon, then sleep one of your Cousins 
Affection = 40, Homework ≥ 100, Afternoon -> Unlocks Service 
Affection = 60, Homework ≥ 100, Night -> Unlocks Penetration 
Affection = 80, Homework ≥ 100, Sleep with her 
Affection = 100, Homework ≥ 100, Afternoon -> Unlocks Miyuki’s ending 
 
Scenes Available 
 
2. – Affection H Scene 
4. – Affection H Scene 
6. – Affection H Scene 
8. – Affection H Scene 
10. – Affection H Scene 
Yui: BBQ 
Yui: Hiking 
Yui: Swimming 
Yui: Morning BJ 
Lewdness 100 
Lewdness 200 
Service 100 
Service 200 
Pervertedness 100 
Pervertedness 200 (Cosplay School Uniform – Water Sports) 
(29th) Foursome 
 
 

Shizuku aka Szrin

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Shizuku aka Szrin 
 
Location: Sweets Shop 
Time Slices Available: Morning, Afternoon, and Evening 
 
Shizuku’s progression: 
 
Starts at Affection = 40 
Affection = 60, Afternoon 
Affection = 80, Night 
Affection = 100, Night – Unlocks Shizuku’s Ending 
 
Shizuku is the clerk at the Candy Store. She is also Szrin on Dwitter. 
 
After you discover Szrin’s true identity she will have s*x with you. After you have s*x a second time with Shizuku you will be able to raise her Affection and acquire her End Game. 
 
Scenes 
 
S*x with Shizuku 
S*x with Shizuku (First time) 
Shizuku’s Affection 60 
Shizuku’s Affection 80 
Shizuku’s Affection 100 
 
 

Kagami

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Kagami 
 
Location: School 
Time Slices Available: Morning and Afternoon 
 
Kagami’s progression: 
 
Starts at Affection = 40 
Affection = 60, Afternoon 
Affection = 80, Night 
Affection = 100, Evening – Unlocks Kagami’s Ending 
 
Kagami is the Track and Field coach, aka Satan’s Gym Coach, and becomes available on August 10. 
 
To run on the field you need to press the Left mouse button in the range with the L and the Right mouse button in the range with the R. They alternate as your legs. You need to beat the race in decreasing times: 40 seconds, 30 seconds, 25 seconds, then you have to catch up to Kagami. Catching Kagami entails being able to run without falling down. Each races takes one Action Point and can be skipped with a Homework Exemption Certificate. After you catch Kagami in the race you will be able to go to the PE Storeroom with her. After you go the first time her Affection will be set to 40 and you will be able to acquire her ending. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Scenes 
 
S*x with Kagami 
S*x with Kagami (First time) 
Kagami’s Affection 60 
Kagami’s Affection 80 
Kagami’s Affection 100 
 
 

Suzuka

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Suzuka 
 
Location: Mountain 
Time Slices Available: Morning and Afternoon 
 
Suzuka’s progression: 
 
Starts at Affection = 40 
Affection = 60, Morning 
Affection = 80, Evening 
Affection = 100, Morning – Finishes at Night – Unlocks Suzuka’s Ending 
 
Suzuka appears on August 16th in the Mountains and will purchase your bugs and fish. If you sell all four levels of bugs and fish to her you can start a relationship with her. Most likely this will not be until your second play through. After you start selling to Suzuka you will see your Current Progress when you talk to her. The O indicates you have sold her one and the X indicates it is still needed. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
After selling all levels of Bugs and Fish to Suzuk you can do “ecological research” with her in the Morning and Afternoon in the Mountains. After you have done the “ecological research” with her once, her Affection will be set to 40 and you can acquire her ending. 
 
Scenes 
 
S*x with Suzuka 
S*x with Suzuka (First time) 
Suzuka’s Affection 60 
Suzuka’s Affection 80 
Suzuka’s Affection 100 
 
 

Mizuki

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Mizuki 
 
Location: Beach (Fishing Area) 
Time Slices Available: Morning and Afternoon 
 
Mizuki progression: 
 
Starts at Affection = 40 
Affection = 60, Afternoon 
Affection = 80, Afternoon 
Affection = 100, Evening – Unlock Mizuki’s Ending 
 
Mizuki appears on the Beach (Fishing Area) on August 21. You will not be able to interact with Mizuki until you have caught a level 4 fish. Talk to her to start a fishing mini-game, the treasure fish cannot be obtained by normal fishing. Complete Mizuki’s fishing game five times to get your reward. You can use the a Homework Exemption Certificate to complete all five mini-games. 
 
The basics of the mini game are that you have to catch the yellow fish at the bottom. The problem is that you can have your hook pass the red fish on the way down or on the way up. Combine that with losing 10 Stamina every time you set your hook and this quickly becomes very difficult. The number of red fish increase by one every time you are successful. I was able to complete the first three and just used Homework Exemption Certificates for the last two. 
 
First Treasure Piece 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Last Treasure Piece 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
After you complete the fishing quest you can have s*x with Mizuki. After you have s*x her a second time, Mizuki’s Affection will be set to 40 and you will be able to unlock her ending. 
 
Scenes 
 
S*x with Mizuki 
S*x with Mizuki (First time) 
Mizuki’s Affection 60 
Mizuki’s Affection 80 
Mizuki’s Affection 100 
 
 

Akari

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Akari 
 
Location: Second Park (Next to Sweets Shop) 
Time Slices: Morning and Afternoon 
 
Akari’s progression: 
 
Starts at Affection = 40 
Affection = 60, Have S*x with her to find the “Secret Base”, Afternoon 
Affection = 80, Afternoon 
Affection = 100, Afternoon – Unlocks Akari’s Ending 
 
This event involves Water Sports. 
 
Akari is the longest side quest in the game. First you have to beat the Menko player in the park four times, then come back to the park at night to talk to him. Then you have to beat him four more times. The fifth time Akari returns and the Menko player plays her, he can’t lose, he will get to one point and the game will continue until he wins. 
 
Then you will be able to find Akari in the park. You can help her train. The first training you will lose. The next training you’ll use your “special power”. When it is her turn click on her to fill the left meter. Again, like her last battle against the Menko player, you can’t lose. Getting her to zero isn’t the point, the point is filling the love meter on the left. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
After you beat her in the second battle you will have to do a third battle, again filling the Love meter on the left. After that battle you will be able to meet Akari in the Second Park for “Special Training”. After you do your first “Special Training” session you will be able to increase Akari’s Affection. 
 
Scenes 
 
S*x with Akari 
S*x with Akari (First time) 
Akari’s Affection 60 
Akari’s Affection 80 
Akari’s Affection 100 
 
 

Creep Guy in School Warehouse

 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] - Creep Guy in School Warehouse 
 
Starting on the night of August 15 a man will be in the equipment shed at the school. He sells: 
 
Glittering Box – +20 Affection 
Super Lewd Magazine – Vigilance Level 30 as a gift, MP +50 
Homework Exemption Certificate – Lets you skip certain mini-games 
 
The Glittering Box and Homework Exemption Certificates are the items you really want. Giving the Glittering Box to a girl will automatically max out her current affection level in one shot. The Homework Exemption Certificate allows you to skip Homework assignments, Track and Field run, Treasure Fishing, and Menko battles. So, if you’re having a hard time getting past something a Homework Exemption Certificate may be the answer you’re looking for. 
 
 

Endings

 
Each ending is essentially a photo of the girl with some writing on it. 
 
If you get a girl to 100 Affection and do the event attached to 100 Affection you will unlock their ending. You will have to pick one from Yui, Rio, and Miyuki. The girl you select will give you an envelope. If you unlocked the thre*some or foursome you will get that photo, no choice involved. 
 
If you have unlocked one of the other girls your Mother will ask you, “Have you done everything you wanted?” and if you reply Not yet you will be given the option to say goodbye to them. You can say goodbye to all of the other girls you have unlocked. You can see from the list on the right which girls you have unlocked (Can bid farewell) and the girls you have not unlocked (Can’t bid farewell). 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
In order to say goodbye to them you need to go to their location and talk to them. After you have said your goodbyes Return home to end the game. The game will auto play through your picture gallery and then you can open the envelopes that the girl(s) gave you. 
 
 

Memory Mode

 
After you have completed the game you can relive the scenes in Memory Mode, a kind of sandbox mode. If you made 20 contributions to the Offering Box there will be a big red button in the Living Room. Push the button to unlock all memories. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
In memory mode the game advances the time when you perform a time slice ending act. You can also skip to a specific time of day by clicking the time slice name (Morning, Afternoon, Evening, Night, Late Night). The girls will move around the house 
 
You will have a new icon in your Overworld Skills menu, Summon character. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
This will allow you to summon a specific girl to the current room. You can only summon girls to rooms in which they normally appear. For example you can’t summon Yui or Rio into the Couple’s Room or Miyuki into Yui’s or Rio’s Room. When you summon a girl you will be able to select what the girl is doing, again locked to what they do in the game. So, if a character is sleeping in a room and you want them awake you just summon them and put them in the position you want. 
 
When you select a girl you will have different options, than you do in the game. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
Recall event 
Allows you to relive unlocked events, or all events if you unlocked all memories. 
 
Coax works the same as it does in the game. 
 
S*x does not decrease Lust or Stamina. 
 
If you want to interact with girls outside of the house exit the from door and you will a Who would you like to meet up with prompt, and then you can select from the girls you have unlocked. The girls are not limited to their normal time slices. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 
 
To leave the Memory mode click on your character and select Return to Title screen. You can also change the main character’s name as it defaults to the standard name. 
 
Summer Memories - Useful Game Information - Status Info - Inventory - Homework - Walkthrough Guide [2021] 

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