Kaeya Alberich is the brother of Diluc and is The Knight of Favonious. He is respected, charming, and confident. But he is lazy and laidback. Despite that attitude, he takes his job and work seriously. He adores his brother Diluc a lot and seeks to have an approval from Diluc. He is known to be very respectful, charismatic, and easygoing amongst the elders and he can wield ice. He's tall, muscular, tanned, has short hair with one waist-length blue lock of hair, and an eye patch on his right eye.