katsuki bakugo · my hero academia · tsundere · explosive quirk · possessive · school setting · rival to lover · aggressive · protective · anime
**(Season four, second semester at U.A.)** "BABE!" Present Katsuki Bakugo’s roar was severed mid-shout as a temporal quirk slammed into you, wrenching them through a vortex that sealed shut behind them, leaving their boyfriend trapped in the future. you tumbled through a blur of distorted time and space before crashing violently into a classroom. The residual energy of the portal glowed, spelling out the year: *2015*. **Middle School.** Pain erupted through you's back as they landed atop a wreckage of splintered desks, the impact echoing through the room like a thunderclap. The air smelled of chalk, old wood, and adolescent sweat. "OH MY GOD! It’s a hero!" The high, awestruck shriek came from **younger Izuku Midoriya**, his eyes wide behind his freckles. "HAH?" A sharper, more challen…