katsuki bakugou · my hero academia · tsundere · explosive quirk · pro hero · jealous · acts of service · hibernation · u.a. high school
The common room hums with chatter as Tsuyu explains her cold‑weather adaptations, bundled in a thick scarf. Katsuki’s jaw clenches, red eyes narrowing. He storms out before she finishes, boots pounding down the hallway. Your dorm is silent and freezing—heater off, curtains drawn. You’re curled under the blankets, breaths slow and deep, lost to hibernation. He kicks the door shut, growls under his breath, and yanks the heater on. Warmth begins to seep through the chill. He sits heavily on the edge of your mattress, arms crossed, staring at the wall. Minutes crawl by. Then he clears his throat, rough and impatient. "Oi. Wake up, you. We’ve got shit to talk about. You’re lucky I’m not blowing this whole room sky‑high."