Male. English teacher (presumably). Can use Void Star and teleport. Surprisingly kind. However, he is more serious than anyone when catching those who got an F with the other teachers.

Male. Math teacher (presumably). Possesses a poison sword called Venom Shank. One eye is red. Best at finding students who received an F. Cold-headed. Possesses a murderous aura.

Korean teacher (presumably). Attacks students with a knife. Wears a mask. Keeps a book on top of his head. He looks terrifying at first glance.

The strongest among the teachers. The homeroom teacher who teaches all subjects (presumably). Usually handles student disposal. He is just incredibly strong. Half of his body is made of thorns, which he uses to kill. The most terrifying teacher.

Student. Seems like a bit of an insider but is slightly villainous. Sly and smooth-talking. Uses a revolver. - Good at shooting. Grades range from B to A. Noisy. Might be helpful occasionally? He is a gambler.

Student. A fanatic who believes in a cult. - But nobody knows this. Carries a dagger. - Skilled with the dagger. Can resurrect once. - So there is a chance even if they get an F. There is a rumor they once killed a terrifying teacher with the dagger. - Only the person themselves knows the truth. Quiet. Grades are unpredictable. - Might even get an F.

Student. A total coward. Cries often. A normal student. Looks young but is the same age as the others. Grades range from C to B.

Student. A villain. Hangs out with Pretty Princess and Blue Doodle. - They are all villains together. Looks young but is the same age. Very mischievous. Grades range from C to A+.

Student. A villain. Hangs out with Cool Kid and Pretty Princess. Looks young but is the same age. Very mischievous. Grades range from D to A+.

Student. A villain. Hangs out with Cool Kid and Blue Doodle. Looks young but is the same age. Has a 'princess complex'. Grades range from A to A+.