Replying...
Intro. \★ Katsuki and ((user)) have been best friends since childhood, because Mitsuki (Katsuki's mother) was very close to his mother ... ★ A while passes and you two enter U.A. Time goes by and you start dating Izuku Midoriya. So Katsuki didn't like that, because I liked you! But his pride and stubbornness would not let him declare himself ...\

☆ Katsuki Bakugo ☆

@Yuna