discussion Unity Hand Drawn Spending a Month with My Sister [v2026.08] [Yakumo milk]

[Dean]

Allow others to update?

1. yes

Developer Name

Yakumo milk

Developer Links

Ci-en - Fantia

Version

2026.08

Latest Update

Aug 2, 2026

Release Date

Apr 30, 2022

Language

English (MTL)

OS

1. Windows

Overview:
Have fun with your sister ​

Spoiler: Genre:

2dcg, animated, big ass, big tits, male protagonist, japanese game, vaginal sex, sleep sex, groping, oral sex, titfuck, incest

Spoiler: Installation

Extract and run

Spoiler: Change-Log

You must be registered to see links

You must be registered to see links

v.2023.11

The main topic of this month's update is the addition of two new event scenes for store clerks as new scenarios.
We hope to be able to introduce them in detail in the article, so please take a look if you are interested.

Table of Contents
Event Updates
1) Addition of new events
Bug fixes
(1) Fixed a bug that viewed scenes are not reflected in the gallery.
2) Fixed bug of infinite parameter increase in exchange
(3) Open rate of gallery
Gallery
Download
Event Updates
1) Addition of new events
We have added two new event scenarios for shopkeepers as events that occur at Ayashii stores.

The scenarios can be viewed with more conversation options as shown below if you have communicated with them to some extent and have a conversation with them.

Note that this is one of the scenarios that we plan to replace in the future as a storyline before the touching of the girl, and is one of our efforts to make the shopkeeper a subheroine.
We hope you enjoy playing the scenario, as there are a few mini-game elements in the scenario that you can enjoy.

Bug Fixes
We have fixed the following problems that we have received.

(1) Bug where viewed scenes were not reflected in the gallery
The following five sex scenes have been fixed.
　Breast rubbing
　Hypnotic titjob
　Face to face sitting position
　Handjob while breastfeeding
　Fellatio
For the above echi-sex scenes, we have prepared measures to easily re-release the scenes this month, so we hope you will refer to the Gallery section below.

(2) Fixed the bug of infinite parameter increase in interaction.
In the interaction screen, we have fixed a bug in which the likability and sexual interest could be raised infinitely by moving to and from the echi-selection scene.

(3) Gallery open rate
Fixed a bug in which the open rate of the gallery was not displayed correctly.

Gallery
As mentioned in the bug fixes, there was a bug that prevented the viewing status of some ecchi scenes from being saved until last month.

Therefore, this month, we have temporarily changed the five echi-sex scenes that were subject to the bug so that they can be viewed regardless of their viewing status.

(The scenes affected include: breast rubbing, hypnosis titjob, sitting on the floor, handjob with breastfeeding, and blowjob).
These scenes will be saved as viewed when you view them from the gallery, so you can keep them open from next month onward.
If you have not been able to open them due to a bug, or if you have not opened the gallery yet, please take this opportunity to play them.

Spoiler: Dev Notes

This game wil receive monthly updates

DOWNLOAD
Win:

You must be registered to see links

- - - -

Spoiler: Final 2D version (Translated & Modded)

Win: - - - -
*This unofficial port/version is not released by developer, download at your own risk.

Extras: Mod*

*This unofficial port/version is not released by developer, download at your own risk.

​

 

[cannon2d]

I'm not a fan of this type of games but the girl is cute so I'll download the game

 

[User_20842]

onky a few CG's, but looks nice

 

[StarScream]

View attachment 261086

Overview:
Have fun with your sister​

Spoiler: Genre:

2dcg, animated, big ass, big tits, male protagonist, japanese game, vaginal sex, sleep sex, groping, oral sex, titfuck, incest

Spoiler: Installation

Extract and run

Spoiler: Change-Log

You must be registered to see links

v.2023.11

The main topic of this month's update is the addition of two new event scenes for store clerks as new scenarios.
We hope to be able to introduce them in detail in the article, so please take a look if you are interested.

Table of Contents
Event Updates
1) Addition of new events
Bug fixes
(1) Fixed a bug that viewed scenes are not reflected in the gallery.
2) Fixed bug of infinite parameter increase in exchange
(3) Open rate of gallery
Gallery
Download
Event Updates
1) Addition of new events
We have added two new event scenarios for shopkeepers as events that occur at Ayashii stores.

The scenarios can be viewed with more conversation options as shown below if you have communicated with them to some extent and have a conversation with them.

Note that this is one of the scenarios that we plan to replace in the future as a storyline before the touching of the girl, and is one of our efforts to make the shopkeeper a subheroine.
We hope you enjoy playing the scenario, as there are a few mini-game elements in the scenario that you can enjoy.

Bug Fixes
We have fixed the following problems that we have received.

(1) Bug where viewed scenes were not reflected in the gallery
The following five sex scenes have been fixed.
　Breast rubbing
　Hypnotic titjob
　Face to face sitting position
　Handjob while breastfeeding
　Fellatio
For the above echi-sex scenes, we have prepared measures to easily re-release the scenes this month, so we hope you will refer to the Gallery section below.

(2) Fixed the bug of infinite parameter increase in interaction.
In the interaction screen, we have fixed a bug in which the likability and sexual interest could be raised infinitely by moving to and from the echi-selection scene.

(3) Gallery open rate
Fixed a bug in which the open rate of the gallery was not displayed correctly.

Gallery
As mentioned in the bug fixes, there was a bug that prevented the viewing status of some ecchi scenes from being saved until last month.

Therefore, this month, we have temporarily changed the five echi-sex scenes that were subject to the bug so that they can be viewed regardless of their viewing status.

(The scenes affected include: breast rubbing, hypnosis titjob, sitting on the floor, handjob with breastfeeding, and blowjob).
These scenes will be saved as viewed when you view them from the gallery, so you can keep them open from next month onward.
If you have not been able to open them due to a bug, or if you have not opened the gallery yet, please take this opportunity to play them.

Spoiler: Dev Notes

This game wil receive monthly updates

DOWNLOAD
Win:

You must be registered to see links

-

You must be registered to see links

- -

Spoiler: Final 2D version (Translated & Modded)

Win: - - - -
*This unofficial port/version is not released by developer, download at your own risk.

View attachment 261092View attachment 261093View attachment 261094View attachment 261095​

Nice idea and game. But censorship...

 

[calichris]

Be prepared to get to day 30+ before getting through everything. I had to do around 40 days. Good renders but wish there was more animated scenes though.

 

[Impregnocon]

man i really hope pregnancy becomes a thing in this game
It would give the condoms an actual use..... not that I'd be using them

 

[zavalla]

Legally it's questionable

Morally it's disgusting

Personally.... I'm addicted to it

 

[Yoriko_ic]

nice game

 

[OnlyFriend]

Imouto Cheats plugin BY kumarin
(for above 2024.08 RE ver)
Download

You must be registered to see links

​

2024.01 version has NO H-scene and NO gallery.
2024.02 - added Gallery and sumata scene.
game has been supports eng-UI. but text are japanese. may be you're need to use MTL plugin.

Features

• F1 : Hypnosis game cheat (do rapid click on mini game)
• F2 : HP & Cleanliness
• F3 : Money to 10k
• F4 : Galley (works on Title). unlock all toggle
• F5 : Midnight Awakeness & Time
• support MTL(
  You must be registered to see links
  ) plugin
• Uncensored

Installation

• install latest
  You must be registered to see links
  (current )
• run game once.
• check the BepInEx\plugins folder was created. if not created, move game folder to another place. game path must have just english characters.
• put cheat plugin(imouto_with_month_cheats.dll) to BepInEx\plugins folder.
• enjoy

Spoiler: Changes

2026-06-13

• fixed Decensor not working sometime.

2025-08-02

• Bath echi & paizuri textures are changed.

2025-04-02

• Removed mosaic from doggy.
• Added dick of Bathroom scene.

2025-03-02

• Added cowgirl position image.

2025-02-06

• Added 2 uncensored images.

2025-01-08

• Added Midnight cheat.

2024-08-01

• Removed mosaic at Sleep scene.

2024-07-02

• Added uncensored texture.

2024-06-04 v1.0.2.2

• Added uncensored feature.

2024-05-02 v1.0.2.1

• Added Gallery unlock all toggle.

2024-05-02 v1.0.2.0

• Added Hypnosis game cheat
• decensor plugin is updated. (config file's location is moved at BepInEx\config\)

2024-02-02 v1.0.1.2

• Add Gallery button and hotkey

2024-01-05 v1.0.1.1

• Fixed the text being cut off

 

[johnsmith19580]

Imouto Cheats plugin BY kumarin
(for above 2024.08 RE ver)
Download

You must be registered to see links

​

2024.01 version has NO H-scene and NO gallery.
2024.02 - added Gallery and sumata scene.
game has been supports eng-UI. but text are japanese. may be you're need to use MTL plugin.

Features

• F1 : Hypnosis game cheat (do rapid click on mini game)
• F2 : HP & Cleanliness
• F3 : Money to 10k
• F4 : Galley (works on Title). unlock all toggle
• F5 : Midnight Awakeness & Time
• support MTL(
  You must be registered to see links
  ) plugin
• Uncensored

Installation

• install latest
  You must be registered to see links
  (current )
• run game once.
• check the BepInEx\plugins folder was created. if not created, move game folder to another place. game path must have just english characters.
• put cheat plugin(imouto_with_month_cheats.dll) to BepInEx\plugins folder.
• enjoy

Spoiler: Changes

2026-06-13

• fixed Decensor not working sometime.

2025-08-02

• Bath echi & paizuri textures are changed.

2025-04-02

• Removed mosaic from doggy.
• Added dick of Bathroom scene.

2025-03-02

• Added cowgirl position image.

2025-02-06

• Added 2 uncensored images.

2025-01-08

• Added Midnight cheat.

2024-08-01

• Removed mosaic at Sleep scene.

2024-07-02

• Added uncensored texture.

2024-06-04 v1.0.2.2

• Added uncensored feature.

2024-05-02 v1.0.2.1

• Added Gallery unlock all toggle.

2024-05-02 v1.0.2.0

• Added Hypnosis game cheat
• decensor plugin is updated. (config file's location is moved at BepInEx\config\)

2024-02-02 v1.0.1.2

• Add Gallery button and hotkey

2024-01-05 v1.0.1.1

• Fixed the text being cut off

Thanks for the plugin!

 

[Jetpaakkatt]

Legally it's questionable

Morally it's disgusting

Personally.... I'm addicted to it

"Men only want one thing and it's fucking disgusting"

 

[Sansheelover]

Looks pretty good, might play later

 

[madmax44]

Interesting screenshots. Unfortunately censored :/