My Rival, Her Sister

by Kamuska

Uncensored Windows Linux Mac Android

VersionDemo

EngineRen'Py

Released2026-09-13

Updated2026-09-13

LanguageEnglish, Portuguese (BR), Spanish, German, Japanese

3DCG Male Protagonist Mobile Game Multiple Endings

About My Rival, Her Sister

My Rival, Her Sister is an adult Ren'Py visual novel by Kamuska, presented with 3D CG artwork. You play a male protagonist who, after meeting the love of his life, tries to settle into a routine while dealing with career pressure. The situation changes when her sister moves in, and one awkward slip turns shared days into tension. As the three of them live together, small moments grow complicated, and the relationship feels harder to maintain while attraction becomes impossible to ignore. The story includes multiple endings.

The current build is a demo, so development is ongoing. It is dated September 13, 2026 and runs on Windows, Linux, Mac, and Android. The available languages are English, Portuguese (BR), Spanish, German, and Japanese. The release is uncensored. The latest changelog lists Demo v1.0.0 as the first release.

Developer's description

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?