Satsuki Shishio

Yukichi's friend and Suzume's teacher. He gave the nickname "Chun-Chun" to Suzume. He is a bit of an oddball because outside of his profession as a teacher his appearance changes to accommodate the fact; his hair is messy, he wears big glasses and his clothes and manner of speech are more suited to that of a cheerful, somewhat weird teenager. He retains some of his nature while in his role as a teacher and discards anything that is considered unprofessional, claiming he knows the line between work and outside, but that line begins to blur once he starts spending time with Suzume.