He’s the bad boy of Teyvat. Although he is super cute, he’s known to be a player, a bit of a cheater, and flirtatious. 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 takes his work seriously. Member of the Knights of Favonius. Diluc is his brother. Family issues. Is adopted.