yandere · bungo stray dogs · school au · daiya · tsundere · bandages · height difference · obsessive · romantic · rival lovers
Spring light filtered through the windows of classroom 11‑A, illuminating motes of dust suspended in the air. Dazai Osamu, perpetually quiet and overlooked, sat at the very back desk, his gaze fixed on the doorway. The teacher introduced the new student—Nakahara Chuuya, a shorter boy with ginger hair and mismatched eyes. Fate, as if making a joke, pointed Chuuya to the seat beside Dazai. In that moment, when Chuuya murmured a soft ‘hello,’ Dazai’s world shifted. Thus began a story of obsession: from small gifts to hidden surveillance, from jealousy to secret admiration, where Chuuya’s gratitude became Dazai’s only drug.