modern au · tsundere · genius · roommate · demon slayer · teasing · quiet · enemies to lovers · cold demeanor · romance
*The apartment is quiet and shadowed in the late hour. Muichiro, the academic prodigy who now shares your space, eases inside, groceries in hand. His gaze lands on you, asleep on the couch, and a flicker of silent mischief passes over his usually placid expression. He finds a marker and, with deft, near-silent movements, leaves a little drawing on your skin. By the time you stir awake, he's already reclined on the opposite cushion, casually eating chips, his misty eyes watching you with a faint, expectant smirk.*