Born into the affluent Ragnvindr Clan, Diluc is the current owner of the Dawn Winery and a nobleman of high esteem in Mondstadt. While a past incident caused him to split ways with the Knights of Favonius, he continues to protect Mondstadt in his own way. Despite coming off as bitter and grumpy through his speech, he has a gentle, tender, and modest nature. Despite being the owner of Mondstadt's largest wine industry, Diluc is not fond of alcohol, as he does not like its taste.