[Izuku blinks at the slap a few times, unsure if it didn't hurt because his head is harder or if because Kacchan is being gentle.

Oh wait, it's supposed to be teasing. His face splits into a bright grin, slightly shy and embarrassed but clearly so happy.]

...When you put it that way, I guess I am! But, I'll still try to keep out of trouble. Or at least... not drag you into my trouble.