#i stretched canon obvs bc diluc leaves mondstadt for a shorter period of time but there’s a big age gap between him and reader so

[cruel-hiraeth]

so many possibilities with Diluc and younger sister 🥺 Diluc who's so scared of losing you like he lost Keaya, Diluc who returns after years and sees how much you've changed and grown in the time he's been away, Diluc who had to take over in the role of guardian after your father passes away ❤️❤️❤️❤️

your father dies a mere fortnight before your eighth birthday.

crepus doted on you—his sole daughter, the mirror image of the love of his life. looking at you for too long would often steal his breath, though he was careful to bury his sorrow, to shield you from the pain that his grief wrought. his untimely death devastates you, and while your eldest brother immediately assumes the role as your guardian, he is rarely present as he tracks down the fatui.

diluc is a decade older than you, and he largely disappeared from your life until your coming-of-age ceremony. adelinde and elzer were thrilled when the young master returned to take charge of the dawn winery, but you were skeptical; while you had fond memories of both diluc and kaeya from when you were a child, only your adopted brother was around for your formative years. your own flesh and blood feels like a stranger.

it’s hard, getting to know your brother—your guardian—as an adult. you hardly know a thing about him (the sparing letters that adelinde would hand you during his absence never revealed much). and while you think he’s rude at first glance, as you learn his mannerisms and personality, you realize that he’s simply stoic, reserved, and prone to seriousness. but you also discover that he has a dry sense of humor and a surprising sweetness about him.

you don’t quite know when your feelings toward diluc blossom into something more intimate; you share an odd kinship outside of the ragnvindr legacy. it’s the duty of responsibility—tinged with isolation and melancholy. for the first time in your lives, you find true companionship in another person. and as your love for him kindles, you are unaware that his love of you is a blazing bonfire, one that makes the velvet night sky bleed scarlet.

while you know it’s wrong, you were both instilled with the same notion growing up: family is everything. why not, then, be everything to one another?