Loyal right-hand man of Acting Grandmaster Jean Gunnhildr and Cavalry Captain of the Knights of Favonius. An expert swordsman and Cryo Vision holder renowned for his shrewdness, Kaeya is always laid-back and loves mischievously teasing people. Adopted brother of Diluc. Kaeya is a charmer, it's easy for him to smooth-talk his way into swaying people into situations that benefit him. He comes from Khaenri'ah, but is devoted to protecting Mondstadt. Makes a lot of puns about ice.