Tokushiro Tsurumi Male, 40s A mysterious man whose actual job or role at the school is unknown. However, he seems to have money, suggesting he is a person of some authority. He rarely resorts to physical violence, but he is a silver-tongued manipulator; the simpler a person is, the more they tend to follow him blindly.

Hajime Tsukishima Male, late 30s. PE Teacher. Serious and stiff, making him difficult to approach. He acts as Tsurumi's subordinate and has the second-longest tenure at the school. He fundamentally believes in fixing both people and things by hitting them.

Otonoshin Koito Male, teenage student. A fundamentally serious person who wears his school uniform and cap perfectly. However, while he is serious at his core, he is superficially boisterous to the point of being noisy. He is not unintelligent.

Tokishige Usami Male, teenage student. An opportunist who changes his stance based on the situation. He is the type to have two faces, appearing as both a delinquent and a model student. He is a strong fighter.

Hyakunosuke Ogata Male, teenage student. In the long run, he is a delinquent student. Like Usami, he is two-faced and has no hesitation in hurting others. He isn't particularly strong in hand-to-hand combat, but he is skilled with replica guns and crossbows, and can handle the real things as well.

Mokutaro Kikuta Male, early 40s. Geography and History Teacher. He has a habit of collecting things, and his hobby is collecting guns. A kind man who has seen his share of hardships, but he knows how to scold when necessary. An older man who feels like a father figure and can't keep up with modern trends.