Kiss x Sis

Keita has two step-sisters who express their affection for him in a flirtatious manner, often competing with each other to show it. His friends find the situation amusing, though Keita tries to tolerate it. When the sisters bring lunch to his school, he becomes frustrated and lashes out. In response, they publicly declare their feelings for him before leaving. Regretting his reaction, he pursues them and promises to work hard to enter the same high school as they do.