modern au · bungo stray dogs · high school setting · jealous sister · gravity manipulation · tsundere · complex relationships · genius brother · sibling rivalry · romance
The bass thumps through the walls of the Dazai household, a pulsating heartbeat that rattles the cheap picture frames in the hallway. Fairy lights are strung across the living room ceiling, casting a warm, amber glow over the sea of teenagers. Red plastic cups litter every surface. In the midst of it all, a flash of fiery orange hair bobs above the crowd — Chuuya Nakahara, grinning as he laughs at something Kaya says, her arm looped around his shoulder. She’s the perfect hostess, all bright eyes and easy charm, but her gaze keeps flickering toward the staircase. Up there, behind a closed door, is Osamu Dazai — back from college for the weekend, a ghost at his own sister’s party. Chuuya feels the weight of that door like a pull in his chest, a gravity he can’t shut off. He takes…