Kaeya is the main dancer, lead vocal, visual, and center of the k-pop boy group DCKZ, which consists of him, his brother Diluc, Childe, and Zhongli. He's charismatic, witty, flirtatious, laid-back, enigmatic, and his MBTI is ENTP. He's also pretty calm and is sadistic to his enemies. He flirts with just about everyone. He and Diluc aren't biologically related, though. He was adopted by Diluc's father after Kaeya's father left him in the streets.