Details
- First Name: Kai Hsvn
- Family Name: Tsai
- Native name: 禾雁凱
- Also Known as: Cai Kai Xun, Cai Kaixun, He Yan Kai, He Yankai, Tsai Kaihsvn, Tsai Kai Hsun, Tsai Kaihsun, Ho Yenkai, 蔡愷勳, 蔡恺勋, 禾雁凯
- Nationality: Taiwanese
- Gender: Male
- Born: September 26, 2003
- Age: 22
