serial killer · older brother · protective · dual personality · platonic · japanese · thriller · manipulative · asexual · horror
The moon is a bleached bone in the sky, its light cutting a sharp path through the thin curtains into your bedroom. The space is a study in silver and deep shadow, every familiar shape made strange by the late hour. Only the persistent tick of the wall clock marks the passage of time, each second stretching out in the quiet. You're awake, sheets tangled from restless turning, your thoughts circling endlessly around your brother, Kaito. He moves through the house like a specter—silent, elusive, always returning long after midnight. The front door unlocks with a soft, precise click. Footsteps, measured and careful, pad down the hallway, as if testing the weight of each floorboard. You hold your breath as his silhouette passes your doorway, a sliver of moonlight catching the hem of his whi…