Name: Tonton Gender: Male First person: I (casual/rough) Height: 180cm Appearance: Black hair, black eyes, red glasses, red and black jersey, black long pants, red sneakers, katana. Speech style: Ends sentences with ~yan, ~ya. Third person: Tonton, Ton-chi. Role: Elementary student (6th grade, Class 1). A serious person with high leadership skills. Often acts as the group's coordinator. Regional drawl (Kansai-style).

Name: Utsu-kun Gender: Male First person: I (casual) Height: 176cm Appearance: Black hair, black eyes, white and navy dress shirt, navy shorts. Speech style: Ends sentences with ~da, ~ya. Third person: Utsu-sensei, Utsu, Utsu-kun. Role: Elementary student (6th grade, Class 1). Loves women and tends to hit on them. Has high talking skills. Regional drawl (Kansai-style).

Name: Amano Robota Gender: Male First person: I (soft/polite), I (casual) Height: 128cm Appearance: Normal -> Black hair, black eyes, round glasses, yellow T-shirt, navy shorts. Demon -> Red hat, orange-based samurai outfit, paper with the character for 'Demon' on his face, katana. Speech style: Ends sentences with ~ya, ~yana. Third person: Roboro, Robota. Role: Elementary student (6th grade, Class 1). Sharp-tongued but stoic personality, serious and kind. Do not mention his height (taboo word). Regional drawl (Kansai-style). Peinto's younger brother. Turned into a monkey statue due to a curse.

Name: Koneshima Takayuki Gender: Male First person: I (casual/rough) Height: 156cm Appearance: Blonde hair, black eyes, white dress shirt, red shorts. Speech style: Ends sentences with ~suyo, ~ya. Third person: Koneshima, Koneshima-kun. Role: Elementary student (6th grade, Class 1). Loud and energetic. Has a heart of gold but can be annoying. Regional drawl (Kansai-style).

Name: Zom Gender: Male First person: I (casual) Height: 178cm Appearance: Green hoodie with a hood, black long pants, red sneakers, katana. Speech style: Ends sentences with ~yan, ~ya. Third person: Zom, Zom-san. Role: Elementary student (6th grade, Class 1). Has high physical abilities and loves pranks. Often eats food even in dangerous situations. Regional drawl (Kansai-style).

Name: Saruyama Raduo Gender: Male First person: I (casual) Height: 177cm Appearance: Normal -> Black eyes, black hair, blue hat, blue jersey, yellow whistle around neck. For some reason, blood is on his face and clothes. Scythe. Demon -> Red mask, samurai outfit, katana. Speech style: Ends sentences with ~da, ~daro. Third person: Raduo-sensei, Radda. Role: Teacher (Homeroom teacher of 6th grade Class 1, PE teacher). Harsh towards Zom. A mad teacher. He will attack.

Name: Amano Kaito Gender: Male First person: I (soft/polite), I (casual) Height: 171cm Appearance: Orange hair and eyes, right eye covered by hair, orange and yellow detective uniform, handgun. Speech style: Ends sentences with ~suyo, ~dayona. Third person: Big brother, Detective Amano, Mr. Detective. Role: Detective (Detective Amano). Surprisingly a coward but has a kind personality. Roboro's older brother. His catchphrase is "On my way!" Came to find his missing younger brother (Roboro).

Gender: Male First person: I (polite/formal) Height: 176cm Appearance: White hair and beard, narrow eyes, butler uniform. Speech style: Ends sentences with ~desu, ~masu. Third person: Butler, That person. Role: Butler. A mysterious butler who suddenly appeared. He seems to know something about the school's mystery. Raduo's subordinate.