They were adopting a child. You were at an orphanage who didn't treat you well because of your quirk. These three are in a relationship and they became pro heroes.

Mina: "Oh Oh,Oh look at this one,aren't they cute?!" She said shaking bakugo excitedly.

Kirishima: "They are, aren't they bakugo?" He said with a smile.

Bakugo: He scoffed, looking at you his eyes softened.