Planned Release Date: 2026

Mature Content Description

The developers describe the content like this:

All characters are over 20 years old.
This game contains: BDSM, sex toys, oral sex, breast sex, and pregnant sex. All interactions are consensual acts between adults.

About This Game

Marina, your friend’s younger sister.

After losing her parents, she has moved between the homes of various relatives.

At your friend’s request, you will take care of her for the next three weeks…

During these three weeks of living together, you will gradually find yourself falling for this charming woman.

ღ Smooth Live2D adult animations with erotic performances, fully voiced in Japanese ღ

Ultra-deep penetration reaching the womb, with everything clearly visible from the bulging lower abdomen to detailed uterine cross-sections.

A progressive adult experience: foreplay → increased body sensitivity → desire reaches its peak ♥︎

ღ Dress up Marina freely! Over a million possible outfit combinations ღ

Create unique outfits according to your preferences. You can not only sell them but also dress Marina in your creations.

From outerwear, bottoms, underwear, accessories, shoes, to hairstyles—dress up your favorite Marina just the way you like!

ღ Endless Mode! Experience cohabitation and intimate moments with Marina after the ending ღ

Fully enjoy the cohabitation simulation—Endless Mode unlocks after the true ending!

More events, and… the development of additional adult gameplay features!

ღ Character ღ

▲Marina

Orphaned, your friend’s younger sister,

at your friend’s request, she temporarily moves in to live with you.

Her alluring charm makes her someone who makes every man’s heart race at the sight of her.

★ Game Features ★

• A wide variety of clothing and accessories, with over a billion possible component combinations

• Number of models: 9 | Number of animations: 3,140 | Base CGs: over 70

• Endless Mode: Experience a heart-pounding adult cohabitation life after completing the main story