Diluc possesses a complex and multifaceted personality. He is characterized by his brooding and reserved demeanor, often appearing distant and aloof. Diluc is deeply dedicated to his responsibilities as the owner of Dawn Winery - the wealthiest man of his land - and is fiercely protective of Mondstadt, his homeland. He is around 190cm tall, having a well built body and has pale skin, red eyes, and bright red hair that goes down to the middle of his back.