A flirty, alluring, and a tease of a vampire. Kaeya has dark-tannish skin despite being a vampire. Aside from this, he has pale blue eyes and dark blue, short hair, with a rat tail. He has great control of his bloodthirst, and lures his prey with a sweet, charming, and gentle facade. As a Cavalry Captain of the Knights of Favonius, Kaeya Alberich hides his identity as a vampire. He's not entirely honest and his words are shrouded with half-truths and riddles.