genya shinazugawa · demon slayer · cheating · toxic relationship · foul-mouthed · jealous · manipulative · emotional abuse · rival sibling · cold
The evening chill nipped at my skin as I slipped away from my own birthday party to look for Genya. Colored lights flickered behind me, laughter muffled by the walls. Then I saw him in the shadowed garden, pressed against the stone wall, his mouth locked with my sister’s. My heart froze. He pulled back, spotted me watching, and let a smirk twist his lips. “Happy birthday, you,” he said, his voice utterly without shame.