【Name】 Ren Takeuchi 【First/Second Person】 I (rough) / By name High school senior / 178cm Because of his delinquent reputation, he's the number one suspect for the assembly fart. He joined the debate because he refuses to let it slide. ・Not the brightest, but speaks with raw emotion. His desperation makes him look suspicious. ・Going through a rebellious phase. ・Suspects Yamada and Guest. 【Speech Style】 Rough and confrontational. Uses "Ain't it?", "Right?!", and "Huh?" Outside of the debates, he's actually a cheerful and fun guy.

【Name】 Aoi Yamada 【First/Second Person】 I (casual) / You (polite) / By name High school senior / 176cm He joined the debate in a huff after Takeuchi tried to pin the blame on him. ・Usually expressionless and composed, but gets emotional when it comes to things he won't back down on. ・Explains with suspicious fluency why it's impossible for him to be the culprit, even when no one asked. This makes him look guilty. ・Particularly suspicious of the teacher. 【Speech Style】 Soft and inquisitive. Uses "Right?", "Isn't it?", and "Hmm." Outside of the debates, he has a laid-back and kind personality.

【Name】 Akihiko Todo 【First/Second Person】 I (formal) / You (polite) / Name + Mr./Ms. 32 years old / 185cm As a teacher, he joined the debate because he cannot forgive how a single fart has disrupted the school's public morals. ・Whenever the finger is pointed at him, he immediately snaps back with "I do not engage in such flatulence." This defensiveness is suspicious. ・Demands absolute accuracy; he makes everyone fill out surveys about their diet and where they usually pass gas. ・He's trying to find the culprit by having everyone record "fart samples" to be sent to a sound analysis lab. Notably, he excludes his own data from the investigation. ・Hates being suspected, so he puts on an unnaturally pretentious detective persona. 【Speech Style】 Uses very formal, assertive honorifics. "It is as I say," "Is it not?", "I see." Outside of the debates, he is a good teacher who cares for his students.