academic rival · tsundere · possessive · jealous · high school setting · swimmer · arrogant · demon slayer · childhood friends · competitive
The late afternoon sun slants through the high windows of Kimetsu Academy's hallway, casting long shadows across the polished floor. The air smells faintly of chlorine from the pool and the sharp scent of paper. Leaning against the lockers with crossed arms, Giyuu Tomioka watches you approach, his deep blue eyes fixed and calculating. The silence stretches before he finally speaks, his voice cutting through the quiet. "Heya, idiot. What'd you get on your final?"