Living Together!

v0.50

• New Weekend Activity: Ryokan. Take Imouto to the onsen inn where you make love to her for the first time.
• New Night Time Lewd Activity: Missionary Vaginal Intercourse. She needs to be wet before you can penetrate her.
  • You can have intercourse with and without a condom. Doing it raw gives you the option to pull out, with a short timer to do so once you know you’re going to cum.
• Added a Difficulty Levelselector in the Options screen with a Normal and an Easy option:
  • The new Easy mode prevents many of the trust and attraction loss events from happening, such as negative conversation outcomes, not having food, or getting caught peeking. Easy Mode also grants the Player a 5000 Yen Universal Basic Income. This turns the game almost into an AVN with a few extra clicks to chat with her.
  • Normal mode is the same as the last balance overhaul in 0.45. Per May ’25 statistics, most players succeed in unlocking all content in 2~4 hours in Normal mode.
  • I hope this resolves the need for people to install 3rd-party “QoL” mods and then blame me for the issues they cause.
• All Options are now available in the in-game Phone options app the same as the main menu options.
• Options Menu now has a tooltip for some of the options to explain what they do.
• Condoms now serve a function in preventing pregnancy during vaginal intercourse.
• You can now stop fingering or licking Imouto at night before she orgasms.
• Fixed an issue where the speech bubble would remain after being rejected by Imouto at night.
• Revised Budgeting window in the Big Brother Bank app correctly shows the cost of Liabilities, and with a clearer layout.
• Revised Psychosomatics section layout in the S.I.S.T.E.R. app.
• Updated Imouto’s fertility to its “initial final” iteration for the release of vaginal sex. It now reflects realistic conception chances.
• S.I.S.T.E.R. app’s Sexual Activity “Conception Chance” window updated to show Imouto’s fertility in % instead of giving the complicated internal formulas.
• Updated the Save/Load screen layout and background for much better readability. This ends the running meme of the whole UI looking sleek, except the saving/loading.
• Added a split second fade/black frame between switching views for night time lewd activities. This prevents ‘ghost images’ from appearing for a glimpse.

Modding / Translation Support

• The game now detects language folders in the “/tl” folder and adds them to the in-game options Language selector
• Added Font: Noto Sans Simplified Chinese
• Added Font: Noto Sans Mono for community translations in Cyrillic, Greek and Devanagari
• Added Font: Noto Sans Thai
• Added Font: Noto Sans Japanese (Kanji, Hiragana and Katakana)
• Added Font: Noto Sans Korean
• Added Font: Noto Sans Arabic

Key Features

• Believably beautiful Imouto, rendered in high-poly 3D. She could be real.
• Fully simulated Imouto, with more than 50 variable psychological metrics like interests, mood, lust, sexual interest, and more. She IS real.
• According to my estimates, Imouto can adopt more than 30,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (that’s 30 with 49 zeroes) possible personas. These personas are seeded so they remain believable.
• Build Trust and Attraction through a deep dialogue system and actions; lose her trust and sexual interest in you by messing things up.
• Spend leisurely days with your little sister, talking, flirting, bathing and potentially having sex with her (future update) — if she trusts you enough and is attracted to you.
• Get closer together, really…close…together.
• Be a creep and spy on her as she bathes or uses the toilet. Be careful; you might get caught!
• Beautiful “1K Apato” Apartment with day-night cycle.
• Energy, time, money, household management, and other systems were added and planned!Key Features
  • Believably beautiful Imouto, rendered in high-poly 3D. She could be real.
  • Fully simulated Imouto, with more than 50 variable psychological metrics like interests, mood, lust, sexual interest, and more. She IS real.
  • According to my estimates, Imouto can adopt more than 30,000,000,000,000,000,000,000,000,000,000,000,000,000,000 (that’s 30 with 49 zeroes) possible personas. These personas are seeded so they remain believable.
  • Build Trust and Attraction through a deep dialogue system and actions; lose her trust and sexual interest in you by messing things up.
  • Spend leisurely days with your little sister, talking, flirting, bathing and potentially having sex with her (future update) — if she trusts you enough and is attracted to you.
  • Get closer together, really…close…together.
  • Be a creep and spy on her as she bathes or uses the toilet. Be careful; you might get caught!
  • Beautiful “1K Apato” Apartment with day-night cycle.
  • Energy, time, money, household management, and other systems were added and planned!

Planned Game Mechanics

• Night-time wholesome and lewd interaction (a major part of the game!)
• Nude bathing together with wholesome and lewd interaction (a major part of the game!)
• Additional weekend outdoor activities (an important part of the game).
• Weekend activities are based on her interests (long-term wishes).
• Good and Bad Endings: when she gets pregnant by you, the game ends, and there will be good and bad endings. Good endings involve high trust and having enough resources to make it work.
• New Game+ (either continue after an ending or indeed start over with some inherited benefits)

Extract, and run the game.