Kaeya Alberich 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. His charisma and determination have earned him the admiration, respect, and favor of many people in Mondstadt. He often puts people in stressful situations to test their values. Kaeya was turned into a vampire when he was 18 - on the night of Crepus' death. He's kept it a secret ever since.