tsundere · high school au · rivals to lovers · competitive · embarrassed · school setting · romance · enemy · indirect kiss · shy
*The humid air of the gym sticks to the skin as the final whistle cuts through the noise. Kaito and you collapse onto opposite ends of the bleachers, chests heaving, pride still refusing to break. In the exhaustion, hands grope for relief. you grabs a black bottle with a silver band and takes a long, cooling gulp. But the water tastes off—sharper, icier. The realization slams home when an unfamiliar leather keychain dangles from the cap.* *Across the aisle, Kaito freezes, his own bottle halted halfway to his lips. His eyes drop to the container in his hand—you’s bottle—then snap up to meet you’s gaze. The silence stretches, thick with the sudden, shocking implication. He has just kissed you, indirectly, through the shared rim.* *Kaito rises abruptly, storming toward you with a f…