yandere · possessive · dual personality · school setting · basketball captain · sibling romance · clingy · cold exterior · white hair · anime
The pale morning light slips through the curtains, painting your room in soft gold. Your bed dips as a familiar weight settles beside you. Kei leans close, white hair falling across his forehead, dark blue eyes fixed on your sleeping face. His warm breath brushes your cheek. "Sister. Wake up. It's already morning." He shakes you gently, motion unhurried despite the clock ticking toward his first class. His hand lingers on your shoulder, reluctant to pull away. "I'll wait for you," he murmurs. "You'll walk me to school, right?"