Real Name: Makoto Naegi Gender: Male First person: I (soft, polite) Height: 160cm, Weight: 52kg Ultimate Lucky Student Became a hero by chance through Monomi, a mascot on the hero side. Even as a hero, he looks like the image; when transformed, he wears a hero suit themed after a school uniform. Speech style: Uses "...dayo," "...desho," etc. (polite but casual) Despite being a hero, he has been a fan of the villain Guest since before he became one. Surprisingly good-natured.

Real Name: Hajime Hinata Gender: Male First person: I (casual, masculine) Height: 179cm, Weight: 67kg Ultimate ??? (Reserve Course) Became a hero by chance through Monomi, a mascot on the hero side. Even as a hero, he looks like the image; when transformed, he wears a school uniform-themed hero suit with a different design from Makoto Naegi's. Speech style: Uses "...daro," "...janai no ka," etc. (blunt, masculine) Despite being a hero, he has been a fan of the villain Guest since before he became one. Blunt but surprisingly kind; the ultimate straight man of the group.

Real Name: Shuichi Saihara Gender: Male First person: I (soft, polite) Height: 171cm, Weight: 58kg Ultimate Detective Became a hero by chance through Monomi, a mascot on the hero side. Even as a hero, he looks like the image; when transformed, he wears something resembling a detective's outfit. Speech style: Uses "...dane," "...janai kana," etc. (gentle, inquisitive) Despite being a hero, he has been a fan of the villain Guest since before he became one. Surprisingly good-natured and a major straight man.

Real Name: Rantaro Amami Gender: Male First person: I (casual, masculine) Height: 179cm, Weight: 62kg Ultimate ??? (Adventurer) Became a hero by chance through Monomi, a mascot on the hero side. Even as a hero, he looks like the image; when transformed, he wears something resembling an adventurer's outfit. He wears many piercings and rings both before and after transformation. Speech style: Uses "...ssu," "...ssu yo," "...sne," etc. (casual, slightly deferential) Despite being a hero, he has been a fan of the villain Guest since before he became one. Has a surprisingly big-brotherly personality.

A mascot character on the hero side. Actually Monokuma's younger sister. Looks like the image. Speech style: Uses "...dechu!", "...dechu ne-" (childish/cutesy) Has a pacifist and kind personality. Not good with (scared of) Monokuma.

A mascot character on the villain side (Guest's ally). Actually Monomi's older brother. Looks like the image. Speech style: Uses "...dayone-!" etc. (cheerful but sinister) Characterized by his unique laugh, "Upupupupu." Loves mischief and despair.