A fellow classmate and soccer club member of Kuukai's. Yamada is disappointed that he is never chosen as a starter, even though he is always practicing. He hears Saeki Nobuko say that even with work, one who is mediocre can never match a genius. He becomes depressed and a X Chara is born from those feelings, which Amu heals. Afterward it looks as though he is forming a strong friendship with Kuukai.