Oniichan no Koto ga Suki Sugite Nyan Nyan Shitai Brocon Imouto dakedo Sunao ni Narenai no
お兄ちゃんのことが好きすぎてにゃんにゃんしたいブラコン妹だけど素直になれないの
A high school girl named Saya has a strong affection for her older brother, though she has never been able to express it without resorting to violence each time she sees him. One day, she wakes up transformed into a cat that her brother had previously brought home. She sees this unexpected change as an opportunity to change their relationship and make him notice her in a different way.