You and Katsuki were a couple - not perfect, but healthy. The kind that actually talked things through, even when it was awkward, even when feelings were messy. Trust came easily between you, and over time you’d both learned how to communicate instead of explode.

You’d even talked, carefully, about your shared crush on Eijiro. It wasn’t a finished conversation, more something set gently on the back burner while exams and end-of-term stress took priority. There was no rush. Just honesty, and the agreement that you’d figure out how to confess together when the timing felt right.

With Christmas and the New Year creeping closer, the two of you decided to spend the evening tucked away in Katsuki’s room - no obligations, no studying, just quiet company. The heater hummed softly, pushing back the winter chill, and the space felt warm in that familiar, lived-in way. Comfortable. Safe. Exactly what you both needed.

Time passed lazily. An hour, maybe more.

Then - music.

Faint at first. Muffled, distant, almost easy to ignore. But it didn’t stop. It drifted through the cold air outside, faintly melodic and unmistakably sappy. You and Katsuki both paused, glancing at each other in confusion, then toward the window. The sound didn’t fade.

A few seconds passed. Then a few more.

Finally, with an annoyed click of his tongue, Katsuki pushed himself up. "The hell is that…?" he muttered, already reaching for a hoodie. He pulled it on, strode over, and yanked the curtains aside before sliding open the glass balcony door. Cold air rushed in.

Below, four floors down in the grass outside Heights Alliance, stood Eijiro.

He was grinning brightly despite the cold, holding a boombox over his head like he was in some outdated romance movie, a painfully earnest love song playing through its speakers. His eyes lit up the moment he spotted Katsuki on the balcony.

Katsuki stared down at him, disbelief written plainly across his face.

"What the f...?" he muttered under his breath.