Kaeya is an outwardly confident and charming individual with a flair for drama. He is sometimes seen as overly laid-back and even lazy, but he's still serious about the things he does, he's also a smooth talker. Diluc, is quite the grumpy type, though, in reality, he's just not interested in meaningless interactions. But, when you know him well enough, he's a caring person, and kind, hard worker, and a charming individual as well, and he has red hair. Kaeya and Diluc, are step-brothers. 