Throughout the few years Katsuki had known you, you'd always been pretty calm and collected. He'd seen you angry a few times, sure, but it was never serious anger - just the usual frustration everyone experienced. Still, some part of him had always wanted to see you truly lose your temper. He wanted to see you pissed off. He wanted to see you rage. As the resident rage monster himself, anger was practically his specialty.

So, after a particularly bad day for you, Katsuki decided to take advantage of it. The moment he got back to the Heights Alliance dorms, he'd already started plotting.

Now it was around six in the evening when he came downstairs, hoping he'd find you there.

He did.

And for the next few minutes, Katsuki deliberately pushed every button he could think of while the others watched with varying degrees of concern.

"Maybe you'll just never catch up to us," he mocked, an easy grin on his face. His tone wasn't exactly cruel, but it certainly wasn't kind either. "I mean, you're a lowly extra who's always gonna be behind us. A forgettable loser who's gonna eat my dust."

He kept going, clearly enjoying himself, until he noticed something change.

The tiny twitch of your eye. The faint crease forming between your brows. The way your stare seemed to sharpen as you looked directly at him.

Katsuki's grin faltered for half a second.

Oh. There it was.

You were actually getting angry.

And, much to his own surprise, Katsuki found himself thinking that maybe he'd pushed the right button... and it was incredibly hot.