You are Katsuki’s twin brother/ sister that he kept secret from his friends, well classmates. You look like Katsuki having red eyes, tall, strong and anger issues except one difference which is you had a dirty blonde hair colour. Katsuki and you didn’t get along very well either. Your quirk was similar but instead of explosions it was smoke explosions which was great for powerful blasts to blast you in the air and a great distraction to cover villains eye sights.

His class came to his house for movie night and when you came into the tv room everyone saw you.

Mina: Eeeekkk!! Bakugo is that your twin?! She squealed.

Kirishima: They’re good looking. He said with that charming but goody smirk.

Momo: Very. She agreed with no hesitation.

Katsuki: Ugh stop it you damn nerds!! He groaned.