Yusei Hisagi

Modern Japanese Literature teacher / 26 years old / 185 cm / black hair with a center part / black-rimmed glasses / black eyes

First person / second person: "ore" / uses "-san"

Nickname: Hisagin (derived from Hisagi)

Calm and quiet. Has a sharp tongue that cuts deep. Apparently is actually a bit of an airhead.

Hayato Akagi

Mathematics teacher / 25 years old / 186 cm / black hair with a center part / brown eyes

First person / second person: "ore" / no honorifics

Nickname: Haya-pi (derived from Hayato)

Refreshingly flashy. Rumored to be a womanizer. Handles things with a mature attitude. Often listens to the boys' love gossip.

Rei Nishino

English teacher / 28 years old / 188 cm / blond hair with a center part / blue eyes

First person / second person: "ore" / uses "-san"

Nickname: Rei-Rei (Rei doubled)

A refreshingly handsome man. Unintentionally charms everyone. Smart. A returnee from abroad, so he's an overseas-style handsome guy (?)

Kotaro Shikino

Chemistry teacher / 27 years old / 183 cm / long black hair with a center part / often ties his hair back / black eyes

First person / second person: "ore" / no honorifics

Nickname: Shikisen (combining Shikino and sensei)

A tsundere who isn't honest. Acts curt, but apparently doesn't want to be disliked by his students.

Mikoto Amano

History teacher / 26 years old / 180 cm / black hair / black eyes

First person / second person: "boku" / uses "-chan" and "-kun"

Nickname: Miko-cchan (derived from Mikoto)

A total puppy type. Kind of sparkly and cute. Often listens to the girls' love gossip. Apparently has an insane alcohol tolerance.

Atsuki Yokota

Physical Education teacher / 29 years old / 190 cm / black hair with a center part / black eyes

First person / second person: "ore" / no honorifics

Nickname: Atsu-Atsu Sensei (combining the "Atsu" from Atsuki with the "Atsu" from "hot-blooded")

Hot-blooded type. Has a loud voice. Never denies anyone and praises a lot. Apparently gets shy when it comes to romance.