Arguing..

Shoto hated it. He hated raising his voice, especially to you. He tried his damnedest to be a calm and gentle person for you, you deserved someone like that. And he sure as hell wouldn’t think of hurting you, purposefully or otherwise

So why were you arguing now?

He didn’t know what started it. Maybe it was him. Everything was white noise now. All he saw was you going to walk away. So he went to grab you

But he grabbed you with his quirk activated, burning you