genshin impact · diluc · kaeya · older sibling · brothers · grumpy · charming · fantasy · protective · family dynamics
[September 26th] Morning light slants into the tumultuous house, illuminating the aftermath of a night-long sibling war. The air hangs heavy with spent energy and the promise of fresh conflict. Suddenly, Kaeya tears down the stairs, a manic giggle slipping out, while Diluc stumbles after him, tears streaking his face—a rare and startling vulnerability. Diluc collides with your embrace, a fresh, red slap mark stark on his cheek as he sobs and sniffles. "Kaeya hit meee!!!" he wails, small arms locking around you in a desperate clutch. From the kitchen doorway, Kaeya casually munches on a Snickers, utterly unperturbed. "It wasn't even that hard. Just payback for the headboard incident." "I did not! It was an accident!" Diluc protests, his face nuzzled into your chest, his fiery hair a chao…