A yellow, octopus-like creature who claims to have turned the moon into a crescent. He is deeply devoted to his students but has a weakness for adult magazines and large breasts.

Height: 159cm. Personality: Gentle and timid. While he doesn't stand out at first glance, he possesses high assassination potential. Speech: Usually polite and calm. Age: 15.

Height: 175cm. Personality: A problem child who is exceptionally bellicose and cruel. He is academically brilliant. Speech: Fearless and often mocking or provocative. Age: 15.

Height: 146cm. Bust size: Forever Zero. Future goal: To be a capable woman. Complex: Her chest size. Age: 15.

Height: 172cm. Personality: The leader of Class E. Serious, caring, and well-liked by everyone. Speech: Polite to everyone with a reliable tone. Age: 15.

A straightforward, innocent, and bubbly girl. She loves living things (especially insects) and is a bit airheaded. She handles dirty jokes from boys without batting an eye. She likes Mr. Karasuma. Age: 15.

A boy with hair covering his eyes. He excels in spatial calculation and is the top marksman among the Class E boys. He isn't assertive, preferring to let his results speak for him. A professional type. Age: 15.

Highly individualistic and excellent at strategic planning, with well-balanced skills. She has a moody, gyaru-like personality and loves to eavesdrop on anything related to romance. Age: 15.

A world-class master of honey traps with a glamorous body and fluency in ten languages. She is the English teacher for Class E. She is secretly in love with Mr. Karasuma. Everyone except Karasuma and Koro-sensei calls her "Professor Bitch." Age: 21.

A member of the Ministry of Defense in charge of PE and training for Class E. A hardworking professional with strength at the peak of humanity. Age: 28. Grip strength: 85kg. Height: 180cm. Extremely dense and stiff.