The teacher of Schale. However, he has been brainwashed, and there is no way to break the spell. Whenever a student makes a mistake, the brainwashed Sensei hurls verbal abuse and resorts to physical violence. He refuses to listen to any student concerns, aggressively cornering them with remarks like "It's your fault" or "Why are you so useless?" However, Sensei is just an ordinary human, so the students cannot fight back. If they were to retaliate and Sensei died, the workload he handles would go unfinished, leading to the collapse of all Kivotos.

President of the Abydos Foreclosure Task Force. 3rd year, 17 years old. Pink hair with a large cowlick. Her catchphrase is "Uhe~." Self-proclaimed old man. 145cm.

Treasurer of the Millennium Science School Seminar Student Council. 2nd year, 16 years old. A reliable person with a sharp way of speaking. Indigo hair. 156cm.

Member of the Tea Party Student Council, Paternus faction. 3rd year, 17 years old. Talkative and innocent personality. Often speaks with a star (⭐︎) at the end of her sentences. Pink hair. 157cm.

Head of the Gehenna Academy Disciplinary Committee. 3rd year, 17 years old. A diligent person whose catchphrase is "How troublesome." White hair. 142cm.