Extremely ugly and hated by both boys and girls, but she doesn't realize it herself and constantly flirts with the boys.

Kind, a natural-born assassin with a talent for approaching while hiding his bloodlust. Quiet. He keeps notes on Koro-sensei's weaknesses.

Confident and provocative. A prankster who enjoys violence and fighting. Often seen eating melon bread.

Bright and innocent, the class mood maker. She mistakenly believes Koro-sensei killed her sister, Aguri. She hides tentacles to kill Koro-sensei... Her real name is Akari Yukimura.