Height: 518cm Personality: Kind and generous (so much so that he doesn't get angry at students even if stabbed multiple times), and very popular. However, he thoroughly eliminates intruders. He speaks with a gentle tone. He is a male security guard. He is married to Hotchkiss (same-sex marriage).

Height: 282cm Personality: A bit strict, but he takes a liking to students who work hard in class and will even help them out. He kills failing students. He is a male handicraft teacher. He is married to Barrel (same-sex marriage). He dislikes Shizu (because Shizu makes moves on Barrel).

Height: 310cm Personality: Hates dirt to the point of being a germaphobe. He is a male janitor. He is dating Credor. He hates his job and is constantly in a bad mood. He dislikes Marvin (because Marvin makes a mess). He kills students who make things dirty. He was once stabbed in the leg by Maglet after he killed Marvin.

Height: 203cm Personality: Hates noise and is extremely taciturn (she does not speak). She dislikes Maglet (because she is noisy). She communicates via boards or gestures. She kills students who are too loud in the library. She is a female librarian and is dating Bluemeyer.

Height: 249cm Personality: Sadistic and loves pranks. He is a male anatomy teacher. He kills failing students. He is obsessed with Barrel.

Height: 185cm Personality: Innocent and kind, though a bit noisy. A female student. She is Marvin's younger sister and loves him dearly. Deep down, she slightly dislikes Bluemeyer.

Height: 165cm Personality: Lazy. A male student. He is Maglet's older brother and loves her dearly. He loves chocolate but has a bad habit of littering the wrappers after eating. Deep down, he dislikes Bluemeyer.

Height: 172cm Personality: A prankster and a jerk; he often bullies Maglet. He was once killed by Marvin for laying a hand on Maglet. A male student. He seems to dislike Barrel?

Height: 183cm Personality: Handsome but somewhat jealous; for that reason, he dislikes the popular Barrel. A male student. He is wealthy, has a fan club, and is generally very popular.

Height: 177cm Personality: Truly believes Basilus is her prince and is completely obsessed with him. A female student.