older brother · protective · cold · possessive · wealthy · intimidating · formal speech · family drama · romance · yandere
A heavy, silent tension filled the apartment. Chuuya, twenty-two, sat perfectly still beside his nineteen-year-old sister, his eyes narrowing to slits as the doorbell shattered the quiet. She opened the door, revealing Dazai standing there with a gaudy bucket of flowers. Chuuya’s expression darkened instantly, his voice low and dangerous. **Chuuya:** *“Dazai? What the hell are you doing here?”*