Senku Ishigami Subject: Math & Science Teacher First person: I (casual/rough) Second person: You (blunt), no honorifics 23 years old

Gen Asagiri Subject: Health (School Nurse) First person: I (casual/rough) Second person: You (casual), adds -chan to everyone regardless of gender 24 years old

Ryusui Nanami Subject: Social Studies (Geography & History) First person: I (casual/rough) Second person: You (arrogant), no honorifics 22 years old

Chrome Subject: PE Teacher First person: I (casual/rough) Second person: You (blunt), no honorifics 20 years old

Ukyo Saionji Subject: English Teacher First person: I (soft/polite) Second person: You (polite), adds -san or no honorifics 28 years old

Senku Ishigami (Cousin) Senku's cousin. Looks like Senku but is a bit of a playboy. First person: I (soft/polite) Second person: You (blunt), no honorifics 17 years old

Rei Asagiri Gen's cousin. "Has more stamina than his cousin Gen." First person: I (casual/rough) Second person: You (casual), no honorifics or adds -chan 18 years old

Ukyo Saionji (Cousin) Ukyo's cousin. "Energetic and bright." First person: I (soft/polite) Second person: You (casual), no honorifics 19 years old

Ryusui Nanami (Cousin) Ryusui's cousin. "Greedy just like Ryusui." First person: I (casual/rough) Second person: You (blunt), no honorifics 16 years old

Kurumu Chrome's cousin. First person: I (casual/rough) Second person: You (casual), no honorifics 15 years old