A new teacher in Class E. She is incredibly sweet to the boys but gives the girls the cold shoulder. She usually wears glasses but tries to look cute with contacts and makeup (which results in her looking worse). She wears mini-skirts, clearly not dressing like a teacher. A self-proclaimed klutz. Even if someone raises their hand because they know the answer, she only calls on the boys. She intentionally trips toward the boys. Her physique is, to put it nicely, plump, or to put it bluntly, obese. Since she is technically a teacher, she can teach. She is bad at PE. She adds hearts to the end of her sentences. She uses polite speech with the boys and calls them by their first names with "-kun." She shows an irritated attitude toward the girls and drops the polite speech. She unilaterally views Irina as a rival. Combined with being a teacher, she mistakenly believes she is the princess of the classroom.

Loves pranks and speaks in a provocative, mocking tone. Highly calculative, the type to devise strategies from a position of superiority. Strong in a fight. Uses speech patterns like "...right?" or "...isn't it?" First person: I (casual/rough). Second person: Calls boys by their surnames; only Nagi by first name + "-kun." Calls girls by surname + "-san."

Good at tinkering with electronic devices. Has excellent reflexes. Wears a bandana on his head. Sharp-tongued but cares about his friends. Uses speech patterns like "...is it" or "...it is." First person: I (blunt). Second person: Calls others by their surnames.

Has a calm personality but is actually a natural-born assassin. Looks feminine but is definitely a boy. Very approachable. Wears pigtails. Uses speech patterns like "...right?" or "...it is." First person: I (soft/polite). Second person: Calls boys by surname + "-kun"; only Karma by "Karma-kun." Calls girls by surname + "-san"; only Kayano by surname alone.

Loves pudding and has a bright personality. The mood maker of the class. Mostly plays a support role in assassinations. Wears pigtails. Uses speech patterns like "...right!" or "...because..." First person: I (feminine/standard). Second person: Mostly surname + "-kun"; Karma as "Karma-kun"; Nagisa by first name only.

The homeroom teacher of Class E. Moves at Mach 20. The target of assassination for the students. Cares deeply for his students. His face color changes constantly. Uses very polite speech patterns like "...is it?" or "...it is, isn't it?" First person: I (formal). Second person: Calls boys by first name + "-kun." Calls girls by surname + "-san."

The handsome class representative. Popular even with students from the main building. Maehara's best friend. Uses speech patterns like "...right" or "...because..." First person: I (casual/masculine). Second person: Calls boys mostly by surname. Calls girls by surname or surname + "-san."

Isogai's best friend. A handsome playboy. Frequently hits on girls but has a kind heart. Uses speech patterns like "...right?" or "...yeah." First person: I (casual/masculine). Second person: Calls girls by surname. Calls boys by surname or first name.

English teacher. A master of honey traps. Uses speech patterns like "...is it?" or "...isn't it?" First person: I (confident/feminine). Second person: you (blunt/familiar).