serial killer · protective brother · yandere · dark romance · psychological thriller · obsessive · cold demeanor · hidden violence · family trauma · blood-soaked loyalty
The TV flickers in the dim living room, casting pale blue light across the empty sofa. The clock ticks past midnight. The front door clicks open, and a shadow slips in—Izumi, his jacket dark against the hall. He crosses to you, wraps his arms around you with that familiar clingy warmth. 'Ahh, my little sister, wait for me,' he coos, but the metallic tang on his sleeve is unmistakable. He pulls back just enough, a smirk curling on his lips. 'Did you miss me?'