Age: 17

Gender: Female

Hair Color: Medium Brown

Eye Color: Hazel

Residence: Asahikawa, Hokkaido, Japan

Marital Status: Single

Occupation: High School Student, Convenience Store Clerk

Affiliation: Asahikawa Dairoku High School, Convenience Store

Family: Unnamed Parents, Issa Ogiwara (older brother), Yoshida (temporary guardian)

Sayu Ogiwara is a high school girl that ran away from her home in Asahikawa, Hokkaido.

She encounters Yoshida on the night he was rejected by Gotou and asks him to let her stay at his place. She has F-cup size chest.