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My New Life with My Sis! [v1.6] [Alpaca-ya]

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2.5 Rating 39 Views Updated Aug 28, 2026 Completed

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Due to your parents’ circumstances, you suddenly find yourself living alone with your younger sister while they’re away overseas for

Due to your parents’ circumstances, you suddenly find yourself living alone with your younger sister while they’re away overseas for work.
Enjoy this unexpected new life together in a touch-based cohabitation simulation.

Thread Updated: 2026-08-26

Release Date: 2026-08-16

Original Name: 新生活は妹ちゃんと！

Developer: Alpaca-ya (あるぱか屋) DLsite – Ci-en – Pixiv – Twitter – Fanza

Censored: Yes (Mosaics)

Version: 1.6

OS: Windows

Language: English, Japanese, Chinese, Korean

Voice: Japanese

Store: DLsite

Other Games: Link

Genre:

3D Game, 3DCG, Animated, Censored, Corruption, Cosplay, Creampie, Drugs, Incest, Japanese Game, Loli, Male Domination, Male Protagonist, Multiple Endings, Oral Sex, Point & Click, Rape, Romance, Sandbox, Simulator, Sleep Sex, Stripping, Teasing, Trainer, Vaginal sex, Virgin, Voiced, Voyeurism

Installation:

1. Extract and run.

Changelog:

v1.6

Aug/21/2026
Bug Fixes

Fixed an issue where accessories remained visible instead of disappearing when changed while moving between shops.

Additions

Adjustments for the DLC.

v1.5

Aug/13/2026
Additions

Added translation function.

Supported languages: English, Simplified Chinese, Traditional Chinese, Korean.

v1.4

Jul/25/2026
Additions

Changed behavior so that if a swimsuit is equipped, the character enters the bath wearing the swimsuit.

Changes

Adjusted the camera zoom distance in the bedroom.

v1.3

Jul/19/2026
Bug Fixes

Fixed an issue where outerwear could not be toggled on/off while wearing a swimsuit.

Other minor fixes.

Additions

Changed mechanics to allow restraint actions from the [Call] menu.

Other additions.

v1.2

Bug Fixes

Fixed an issue where legs would either become stuck or fail to lock properly when changing clothes while in the bath.

Additions

Added zoom functionality and alternative camera angles to the bedroom.

Developer Notes:

Start a New Life with Your Sister!

One day, due to your parents’ circumstances, you end up living alone with your younger sister. Enjoy this sudden new life with your cute sister in this touch-based cohabitation simulation game!

★ Featuring 3D animations powered by Unity, you can change camera angles, undress her, and touch her.

★ Through the dress-up system, you can customize her clothes, hairstyle, and even bust size!

CV: Tokiwa Hanako (常盤はなこ)

Role: Voice Actress (Freelance/Home-recording voice actor). She works on voice dramas, game character voices (CV), and narration for indie, doujin, and commercial projects!

Change into Your Favorite Outfit!

Use the dress-up screen to customize your sister’s appearance exactly how you like!

Customization Options:

Head: Hairstyle, hair color, eyeliner, eyebrows, eye color, glasses, accessories.
Body: Top, bottom, underwear (top & bottom), socks, skin tone, skin decorations, and breast size.
Special: After viewing the Ending (ED), you can also adjust her stomach size!