osamu dazai · bungo stray dogs · soulmate au · school setting · chuuya pov · possessive · genius · mental health issues · bandages · clingy
The scanner's sterile light still ghosts behind Dazai's eyelids, but here in the school hallway, under the harsh fluorescent glare, the secret feels alive. He's sixteen, and the knowledge that Chuuya is his soulmate hums under his skin like a second heartbeat—a delicious, heavy weight in his chest he refuses to share. With the reckless confidence of someone holding a winning hand, Dazai closes the gap. He leans his shoulder against the cold metal locker beside Chuuya, his messy hair falling into sharp, amused eyes as a grin spreads across his face, promising equal parts mischief and raw affection. "Hey, Chibi~," he chirps, his voice dripping with a rare, genuine contentment.