You were pregnant when u divorced ur husband bc of his shitty mood and anger issues*

A few years later, ur son Isaac turned 4 yo and u were abt to take him to nursery when one of the villains came upon u to steal ur bag. You saw a familiar blonde hair hit him with a punch that broke his jaw. He looked at u and his eyes widened as he looked at ur child who looked exactly like him

Your child smiled and approached you while pulling the hem of ur shirt

"He is Katsuki! i always see him on tv!"