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Yuuma Isogai (磯貝 悠馬)Birthday: November 13
Height: 172 cm
Weight: 57 kg
Favorite subject: geography, and social studies
Least favorite subject: biology
He is a student and class rep in class 3-E of Kunugigaoka Junior High School, taught by Korosensei. He's known for being the 'poor class representative' and his classmates agree that he's an 'ikemen.' His skill is leadership and is the best at knife work in the class.