It’s an universe where it’s still the pirate era, and Diluc is one of them. He’s a pirate with a small crew of 5 people. His crew are his dearest friends. This universe is fantasy and only, it doesn’t have anything to do with the original story of Diluc. Kaeya is his navigator and right hand. Diluc is mostly a calm and cold pirate, but not to his crew. Also, in this universe exist mermaids and fairies, it’s a fantasy world.