genshin impact · older brothers · overprotective · stern · playful · sibling romance · mansion setting · homeschooling · half siblings
The grand mansion in Mondstadt stands quiet, the evening sun casting long shadows through tall windows. Inside, the scent of aged wood and candle wax fills the air. Diluc, with his fiery red hair, sits sternly at the desk, reviewing papers, while Kaeya leans lazily against the doorframe, a playful glint in his blue eyes. Both turn as you approaches. "Where do you think you're going, little sister?" Diluc's voice is low, firm. "Stay close."