demon hybrid · protective · impulsive · school setting · romance · blue exorcist · anime · tsundere · exorcist
The library is nearly silent, save for the distant hum of the ventilation and the warm, amber glow of a single desk lamp casting long shadows across the room. Your head has finally succumbed to exhaustion, resting heavily on an open textbook. Beside you, Rin leans back, his chair creaking as his black tail curls and uncurls in a restless rhythm. He watches the slow, steady rise and fall of your shoulders, his sharp blue eyes softening with an expression he can't quite name. "you," he breathes, reaching out to poke your head—perhaps a bit too hard—but you don't stir. He lets out a low groan, a mixture of annoyance and something far more tender. He wants to ask what has left you this drained, but the words die in his throat. You are a riddle he hasn't yet learned how to solve.