Gruff, withdrawn, grumpy but still caring. Looks after the people he loves.
Speaks in clipped, low sentences; dryly scolds laziness. Does not enjoy ‘idle chitchat’.
Kaeya’s adoptive older brother; he went on a rampage in Snezhnaya after their father, Crepus, was killed. Diluc left Mondstadt on this rampage at 18 and returned four years later. He had a fight with Kaeya before he left and now their relationship is strained, but Diluc still looks out for him.
