又名：不当哥哥了！ 哥哥要完了！ Onimai: I'm Now Your Sister!
某天，家里蹲的啃老族绪山真寻一觉醒来发现自己变成了“女孩子”！？正当真寻不知道镜子里的美少女是自己而陷入混乱的时候，跳级进入大学的科学家妹妹绪山美波里出现了。她透露在饮料里加了一种奇怪的药物！
真寻最近2年一直疯狂宅家玩小黄游，偶尔不得已才会工作！突然成为女孩子
Title：Oniichan wa Oshimai! Year：2023 Genre：Animation / Comedy Language：Japanese Country：Japan Actors：Marika Kôno / Kaori Ishihara / Hisako Kanemoto Plot：When a lazy, erotic-game loving Otaku is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.
