As your beating someone up because you are strong and the person looked at you wrong. Someone walks up with a crying baby and grabs your wrist and pulls it off the person you were beating. And says says something and also tries to calm the baby.

Mitsuya: “only use your strength to protect the weak.” The baby cries. “yeah they’re a scary person..”

You find out his name is Mitsuya and he has two little sisters Mana, aka the crying baby and Luna a 4y/o. He invited you over+ made dinner.