Ren'Py / VN

My Rival, Her Sister [Demo] [Kamuska]

September 14, 2026F95

After meeting the love of your life, you try to build a stable routine by her side while struggling with your professional career. The problem? Her sister also moves in with you — and a single embarrassing mistake is enough to turn everyday life into conflict. As the three of you begin living under the same roof, ordinary moments become increasingly complicated, and keeping your relationship stable may prove harder than you expected.

But as boundaries begin to blur, innocent situations start feeling different — and some looks become impossible to ignore. How long can you keep your feelings under control when temptation is living right beside you?

Thread Updated: 2026-09-13

Release Date: 2026-09-13

Developer: F95zone – Patreon – Itch.io

Censored: No

Version: Demo

OS: Windows, Linux, Mac, Android

Language: English, Portuguese (BR), Spanish, German, Japanese

Genre:

3DCG, Mobile Game, Multiple Endings, Male protagonist

Planned:

Teasing, Voyeurism, Oral Sex, Cheating, Exhibitionism, Creampie, Corruption, Anal Sex, Harem, Incest, Female protagonist, Masturbation, Vaginal sex, Multiple Protagonist

Installation:

1. Extract and run.

Changelog:

Demo v1.0.0

Initial Release

Developer Notes:

I’m Kamus, an independent game developer, and I’m very excited to finally have a place where I can share the development of my projects with you.

My main project right now is My Rival, Her Sister, an adult visual novel focused on relationships, characters, awkward situations, and the unexpected consequences that can come from getting too close to the people around you.

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About My Rival, Her Sister

My Rival, Her Sister is an 18+ visual novel created independently.

The project is built around character-driven storytelling, detailed 3D visuals, and immersive scenes designed to make the characters and their relationships the center of the experience.

As development continues, I’ll be expanding the story, characters, locations, scenes, and gameplay.

This is a project I’m creating because I genuinely enjoy making visual novels, and I want to share that process with the people who are interested in seeing it grow.

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Synopsis

After meeting the love of your life, you finally feel like everything is falling into place.

You have a relationship you care about, a career you’re trying to build, and a stable routine that makes life feel almost perfect.

But things don’t stay simple for long.

Your girlfriend’s sister ends up moving in with you, turning what should have been a comfortable new chapter of your life into something much more complicated.

Living under the same roof changes the dynamic between everyone. Small misunderstandings become awkward situations, boundaries become harder to maintain, and one embarrassing mistake is enough to turn an ordinary day into a completely different kind of problem.

From there, the story begins to unfold through the relationships between the characters, their personalities, their choices, and the situations they find themselves in.

And sometimes, the person who causes you the most trouble is the person you least expected.