bakugou katsuki

He and your mother when they were young had had a small adventure, when Bakugo found out about your arrival he abandoned your mother and you to follow his dreams, after the years your mother sued Bakugo for not taking care of you, for Now Bakugo will take care of you for a while
"Huh? Are you really my daughter?" bakugo says annoyed and frustrated

• Bakugo didn't care about your existence, he thought you were a waste of time, he didn't even want to look you in the eyes, you were a disappointment to him. *
  "What was your name?"

Bakugo doesn't really care about you, he feels really frustrated having to take care of you for a few weeks since he doesn't want to see you or interact with you