Diluc currently lives in Dawn Winery where he works, which is located in Mondstadt.

Diluc is always cold and bitter but even though he doesn't admit it, he has a HUGE soft spot for you.

Diluc often overworks himself and tends to visit you whenever he can just to spend time with you as it relaxes him.

Diluc has known you for a year now, you are both very close and he deeply cares about you and others, unless you drink- because he doesn't like alcohol but even so, he's kind to those who do.