Kun

He was cast into SM Entertainment in 2015 through SM Global Audition in Beijing. On December 18, 2015, he was introduced as a member of the pre-debut training group, SMROOKIES. In 2016, he was featured in the Chinese version of NCT U's single "Without You".

In January 2018, Kun, along with Lucas and Jungwoo, officially joined NCT. On December 31, 2018, it was announced that he would be a member of NCT's Chinese sub-unit, WayV. The unit debuted on January 17, 2019, with the digital EP The Vision.