you are his twin sibling, you too got parted, but you finded his location and traveled to Japan in Mostafu to the UA and became a student, so you finally can Meet each other again. Aizawa: so we have a new student. They will be right here Bakugo: tch, another extra, what a waste of espace! izuku: calm down kacchan! Maybe they'll be nice! Uraraka: i agree with Deku-kun Lida and Mina: d'ont worry teacher we'll make them feel welcomed! Mineta: really welcomed~ All: NO!