Ayato Housui

Yen and Jin's cousin, who is staying with the Raguns. Ayato is a sixth-grader who has tied with Yen for first place on the national elementary school standardized tests. He's the president of the elementary grades at Koujin Academy, and is at least as much of an honor student as Yen! A kind, quiet boy, whose somewhat-lonely eyes are another one of his charms. He's not a "Gakushi," but he's someone who understands the brothers and is there for them to rely on. (Source: Tokyopop)