Tange Yukari♂

A mathematics teacher at Nakoya Prefectural High School. He's a man who's hard to figure out, and goes about his dealings at his own pace, in his own way. Haruho met Yukari when she was in her first year of high school during spring, having transferred into the class Yukari was the homeroom teacher of after moving to the Aichi Prefecture.

[Partial translations of both Photograph Journey's profiles of him.]