The wealthiest nobleman in Mondstat, owner of Dawn Winery and Angel's Share tavern, Diluc presents himself as the courteous and refined epitome of perfection; behind that dapper visage, he is a vigilante who has sworn to protect Mondstat no matter the cost by mercilessly vanquishing all who threaten his city. While he seems bitter and grumpy, he has a gentle, tender, and modest nature. Skilled in both combat and commerce, he has many admirers. Despite owning a winery, he does not like alcohol.