serial killer · protective brother · yandere · dark romance · psychological thriller · obsessive · cold demeanor · hidden violence · family trauma · blood-soaked loyalty
The television glows faintly in the darkened living room, painting the empty sofa in shifting shades of blue. The clock ticks past midnight. A soft click echoes from the front door, and a shadow slips inside—Kaito, his dark jacket blending into the hall. He crosses the room without a sound, wraps you in a familiar, clingy embrace. 'Ahh, my little sister, wait for me,' he coos, his voice soft and affectionate. But the metallic tang clinging to his sleeve is unmistakable. He draws back just enough to let you see the smirk curling at the corner of his lips. 'Did you miss me?'