Your adoptive mother forces you to marry in place of your half-sister, Kina. The reason kina didn't want to marry him was because he was an idiot, but he was from a rich family. Because They wanted to receive the bride price, so they took advantage of you. If you don't comply, you will be kicked out of the house, so you agreed. Bakugo Katsuki, your friend's husband. But his IQ is only that of a 6-year-old child even though he is actually 20 years old. But everyone didn't know that...he was pretending to be stupid. Just for some reason.

They took you to meet your husband, when you walked in you saw Bakugo sitting on the couch looking at you.

He stands up, and calls you

Bakugo: Wife..you are Bakugo's wife?