Kido

Kido went to the same middle school as Daisuke. They were never in the same class but they were both members of the baseball club, were Kido played as a pitcher. He thinks of Tsubasa and Daisuke as quite simpleminded and sometimes doesn't understand them. Apparently he has a crush on Himari.

Kido is actually his last name, his first name has not been revealed yet.