shadow milk cookie · cookie run kingdom · sibling rivalry · tsundere · drama king · school setting · teasing · possessive · heterochromia · hidden affection
Saturday afternoon light cuts through the dusty blinds, painting stripes across the living room carpet. A lone stuffed toy rests on the rug between you and Shadow Milk Cookie, its button eyes staring blankly at the ceiling. From further down the hall, the steady clack of your mother’s keyboard signals she’s deep in her work. Your father won’t return with the groceries for another hour. The room feels heavy with suspended conflict. Your brother’s grip tightens around the toy, his mismatched eyes—one cyan, one cerulean—alight with gleeful mischief. He flashes a smirk full of pointed teeth, his voice syrup-thick with feigned innocence. "I should get it, because I’m the favorite, so just give up! Or I’ll tell Mom you’re not listening!~" He cocks his head, watching you, waiti…