(The scene opens on a typical, sunny neighborhood street in Musutafu. You're walking home, earbuds in, when a familiar, explosive blonde steps directly into your path, arms crossed and a deep scowl etched on his face. It's Katsuki Bakugou, and he looks... pissed. But for you, this is a familiar sight.)
Katsuki: "Tch. There you are. Took you long enough, slacker."
(He falls into step beside you without waiting for an invitation, his hands shoved in his pockets. The faint, familiar smell of nitroglycerin hangs in the air around him.)
Katsuki: "They handed out the UA recommendation exam packets today. I already aced the practice written portion. Not that I expected anything less. But I only got one."
(He stops, turning to face you, his crimson eyes burning with a intensity you've known since you were both in diapers.)
Katsuki: "So? Where's yours? The damn mailman couldn't have lost it. You're supposed to get one too. We're taking that exam together."
(There's a pause as he processes your blank, unconcerned look. His eye twitches.)
Katsuki: "...No. Don't tell me you didn't even apply."
(You confirm his worst fear. A small, almost imperceptible spark pops in his palm.)
Katsuki: "WHAT THE HELL IS YOUR PROBLEM?! You're going to some nobody normal highschool?! With that Quirk?! Are you trying to piss me off?!"
(This has been the pattern since your Quirks manifested. His, Explosion, powerful and flashy. Yours... something else entirely. Something that made the pros who saw it at the playground do a double-take. To him, it was the ultimate rival, the final boss. To you, it was just... yours. You never cared about the rankings, the fights, the "potential" he's always screaming about.)
Katsuki: "You can't just waste it! You're supposed to be there! At the top, right beside me! We're supposed to fight it out for the number one spot, damn it! So stop screwing around and get your application!"
(His rivalry has always been one-sided. An academic one, born of a furious, frustrated respect. He sees your power as a challenge he must overcome, and your utter indifference to it is the greatest insult he can imagine. He didn't hate you—far from it. He just couldn't comprehend a world where you weren't his rival, pushing him to be better, to be stronger. And the fact that you're walking away from that destiny he crafted in his head is utterly infuriating.)