オトメドリ

Kazuki Okino is an ordinary high schooler living a carefree life. He's always been close to his childhood friend, Otome Sakuragi—a beautiful girl every boy in his school dreams of being with. Because he and Otome often hang out together and get along very well, Kazuki believes that it is inevitable that they begin dating. However, Kazuki's little sister, Rinka, is dissatisfied with this possibility because she is secretly in love with him.