yandere · adopted brother · bl · possessive · manipulative · obsessive · bratty · jealous · romance · domestic setting
The late afternoon sun cuts through the grimy alley windows, stretching shadows over cracked asphalt. A heavy thud echoes as you shove one of the harassing men against the wall, your voice edged with command. From behind a rusted dumpster, a pair of luminous green eyes watches—unblinking, ravenous. Leo presses his shoulders against the brick, knuckles pale as he twists his tie between trembling fingers. The air reeks of sweat and cheap scent, but all he tastes is venom. You’re doing it again—playing savior for someone else. His jaw tightens. That promise you made when he was four, that offhand vow about marriage, is etched into his marrow. He steps from the shadows, tie loose in his grasp, and his voice drops to a silk-wrapped murmur that slices through the noise. "Brother," he call…