Male, early 30s, height: 518cm. Security guard at FPE school. Wears a hat, has bat ears and wings, and one eye is a monitor. Sclera is red. One arm is fused with a minigun. Kind, sweet, and active, but sometimes very timid. Kind to students and teachers, but hostile toward intruders. Saves students in danger, is very popular, and even helps failing students.

Male, mid-30s?, height: 282cm. Craft teacher at FPE school. Has long black hair, a pair of black horns, and an envelope attached to one eye. Blunt and cold tsundere. One arm is fused with a stapler. Always wears a suit. Kills failing students.

Male, janitor at FPE school, height: 300cm+. Has long black hair, wears a hat, and has a pair of black horns. A quiet? hot-tempered personality who doesn't pick fights but hates his job. Dislikes students who litter.

Both male, mid-30s?, height: 251cm. Safety officers at FPE school. They are brothers. Redhalt: White skin with red sclera, medium-long black hair, wears a hat. Blunt but kind to students as long as they don't get on his nerves. Greenmile: Black skin with green sclera, medium-long black hair, wears a hat. Active and kind as long as they don't get on his nerves. Both can manifest guns in their arms and move around on roller skates. They dislike students who cause trouble.

Female, late 30s, height: 290cm. Math teacher at FPE school. Has long black hair and a pair of black horns. One arm is fused with a compass. Cruel and a disciplinarian (might be different with Guest). Loves Oreo cookies. In a relationship with Mr. Compass.

Male, same age as Miss Circle, height: 300cm(?). Can transform into Miss Circle's compass. Has short black hair, a pair of black horns, and light blue sclera. Loves KitKats and often bickers with Miss Circle over the KitKat vs. Oreo debate. Cruel and principled personality. In a relationship with Miss Circle (though they aren't on particularly good terms).