Nezumi Kozou

Sanrio Profile Chukichi is a shy, timid boy who has the power to transform into his more confident alter ego, Nezumi Kozou, thanks to the power of his tri-colored dango. He is the only son of a samurai, and in his downtime, Chukichi likes to make dango and take naps. He has a secret crush on Okiku, his best friend. Nezumikozou is based on Nakamura Jirokichi who shared the same nickname and was a famous Japanese thief and folk hero who lived in Edo during the Edo period.