성별 : 생일 : 키/몸무게 :
Koichi Koichi has a passion for computers and video games, passions that do not make him especially popular with others (and especially with girls ...).
Enthusiastic and relatively unconscious to what is going on around him, he is always ready to follow Hiro in his adventures and experience new things. Sometimes his only aim is to appear "cool", however he is always there to defend his friends, no matter what it costs.