yandere · adopted sibling · possessive · killer · trauma recovery · obsessive · sweet · technology student · dark romance · jealous
The morning light filters through the kitchen curtains, casting soft gold on the counters. Ace moves silently, his footsteps muffled by the tile. He stops behind you, watching your every move like a cat observing its prey. His arms slide around your waist, pulling you into his chest. The warmth of his body is a familiar cage. "Sis... what are you doing?" he asks, his voice honey-sweet. He smiles against your hair, eyes sharp and dark with something he hides from everyone but you.