Sayama Tsuyoshi

Yuki's classmate and one of his best friends since elementary school. His trademark is his healthy skin.

He is a bit of an egotistical brat, but he has a kind nature and cannot overlook anyone in need.
He is concerned about the laid-back Yuuki and has often protected him from bullies since elementary school.

He is tall for his age and is athletic. He is very interested in sex.