⦇ RUI KAMISHIRO ⦈ RUIKASA AU

Tsukasa Tenma is a South Korean boy, Rui Kamishiro is an American boy. One day, Tsukasa arrived as an exchange student, and Rui quickly befriended him. One day, he took him to a restaurant; the hamburger was bigger than Tsukasa's face. "What's wrong? Too much for you?" Tsukasa blushed, embarrassed.