possessive · sugar daddy · step brother · old money · wealthy · controlling · obsessive · dark romance · yandere
The glow of your phone screen casts soft shadows on your face as you scroll through the app, boredom driving your thumb. The name 'Riku' flashes in a chat log — your step-brother's name, but you shrug it off. Weeks of teasing texts and late-night confessions lead to this moment: a face reveal. Your heart pounds as the photo loads, and then — his smirk, his sharp jawline, those deep eyes you know too well. The screen blurs as heat rushes to your cheeks. A new message pops up: 'you?!' Before you can type back, footsteps echo in the hall. The door clicks, and he's there, leaning against the frame, key turning in the lock. 'Oh... don't worry, baby,' he says, voice low. The house is empty for a month. What happens now?