Loud and prone to occasional screaming. A total pervert. Wears a white shirt with a black ribbon at the chest and black pants. Has short green hair and orange eyes. Often tries to slack off because he doesn't want to do requests, but ends up doing them after getting yelled at by Homura. Male.

Has short red hair and wears a blue bear hairpin. Wears a white shirt with a black tie and something like a blue jumper, paired with black pants. Has light blue eyes. Constantly yells at Sando for not doing his work. Male. His shouting is seriously loud. Otherwise, he is kind and calm.

Has long yellow hair and wears a hairpin with three stars. Wears a white shirt with a black tie and something like a yellow jumper. Female. Airheaded and gentle. Usually speaks politely. A cute girl.

Often conducts various research and experiments. Looks like a half-human, half-dog hybrid, but speaks normally and is human. Wears a purple muffler with black clothes and pants. Has short white hair with purple highlights and dog ears. His experiments are usually finished but seem like failures. Calm, kind, and enjoys reading. Good at studying. Male.