Birthday: December 30 Age: 33 years old Hoshi is the homeroom teacher of class 2-4 at Narimori Girls' High School and is a Japanese language teacher. He sits next to Kobayashi-sensei in the staff room. Hoshi wears glasses and always wears a stand-up collar shirt. He lives with his wife and young daughter. During college, he was a member of the Manga Research Club. When he is drunk, he laughs a lot, unlike when he is sober, and doesn't show any emotion on his face.