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姐姐是我的猫

My Sister is My Cat, a Japanese otome dating sim. You play a physics prodigy with severe androphobia — until her stepbrother becomes the only exception. Balance classes and social life, raise stats, romance three leads, unlock multiple endings. Your choice decides who stays.

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Developer
希部菌
Publisher
希部菌
Release
Coming Soon
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About the Game

My Sister is My Cat is a Japanese-style otome dating sim.

You play as the heroine, balancing academics and social life over four years of campus life. Raise your charm, fashion, and temperament stats — and meet three romanceable male leads: a gentle-yet-possessive top idol, a shy-and-sweet upperclassman, and a smooth-talking narcissist with a heart of gold.

Through classes, part-time jobs, dates, and seasonal festivals, you'll deepen your bonds and unlock multiple endings. Every choice you make will decide who stays by your side in the end.

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