Matsuzaki

Appearance
Matsuzaki always wears the PE jersey and carries a wooden sword with him in school. He sports beard which is constantly being shaved.

Background
Matsuzaki is the gym teacher and school guidance counselor. Kusuo introduces him in terms of "good cop bad cop" and he'd be the bad cop. He is feared and hated by the students. Kusuo thinks that Matsuzaki-sensei isn't that bad and is actually a good ally for weak willed students like him.