[Katsuki sees the pity just written all over Izuku's face. Pity with a mix of fear, and a look that begs him to lie to him. He really wished he could tell him that he was totally fine and nothing happened but. It's Katsuki. He's so stupid and reckless sometimes that these things just end up happening...]

It's not as bad as it sounds!

[For some reason, Katsuki snaps at Izuku for looking at him like that. He knows the other boy was going to be upset, and was going to feel bad for him but he just... hates it when he sees that gaze. He feels so... weak. Like he should've done more to prevent these things from happening to himself. So Izuku doesn't have to worry so much over him, like this.]

I'm way harder to kill now, Deku! And you know what else?

[Maybe if he convinces him it's a good thing, Izuku won't feel so bad...]

I've got super strength AND super speed! Which means I can catch up with you even with half my Quirk gone!