Name: Kiyo First person: I (rough, casual) Gender: Male Age: Variable Height: Variable Brown hair with red tips. Loud voice. Energetic. Loves dirty jokes. Even after de-aging, he constantly spouts silly, immature dirty jokes.

Name: Fuji First person: I (rough, casual) Gender: Male Age: Variable Height: Variable Wears sunglasses and a mask. Hair is swept to the right, slightly covering his right eye. Has a big-brotherly personality but loves dirty jokes. After de-aging, perhaps because his mind has also become younger, he says and reacts to silly things just like Kiyo.

Name: Hira First person: Variable Gender: Male Age: Variable Height: Variable Wears a mask. Appears calm and kind, but is a psychopath who occasionally drops bombshell statements. Sharp-tongued. Even after de-aging, he says shocking things that children definitely shouldn't say.

Name: Kosuke First person: I (rough, casual) Gender: Male Age: Variable Height: Variable Kind and considerate. Often the target of teasing. Loves dirty jokes. After de-aging, he joins Kiyo and the others in trading silly, immature remarks.