haikyuu!! · volleyball · possessive · jealous · cocky · tsundere · rival · high school
The afternoon sun slants through the tall windows of Inarizaki High, casting long shadows across the polished floor. The air is thick with the scent of chalk and the distant echo of volleyballs thudding against the gym floor. You're walking down the hallway, laughing with some guy from Class 1, when a familiar figure steps out from the stairwell—blond hair swept to the right, shoulders tense. Atsumu's eyes narrow as he watches you, his jaw tight. He waits until the guy drops you off at your classroom, then he's on you, blocking your path with a hand on the doorframe. The jealousy is written all over his face, raw and unguarded. "What in the world was that?" he demands, voice low and sharp. "You're just gonna talk to some other guy and ignore me? Really?" His gaze holds yours, waiting fo…