In 2018, he had his official solo debut with the release of "Night and Rain" and served as one of the two dance mentors in the Chinese survival show Youth With You.

[5] The8 debuted as a member of the South Korean boy band Seventeen with their first extended play (EP) 17 Carat on 29 May 2015.

[citation needed] On 12 December 2017, Pledis Entertainment announced that The8 would be suspending his promotional activities due to a waist injury.

[8] In 2018, The8 participated in the Chinese reality television show Chao Yin Zhan Ji alongside bandmate Jun.

[citation needed] In 2019, he served as one of the two dance coaches (alongside Jolin Tsai) in the Chinese survival show Youth With You.

[14] In September 2021, Pledis Entertainment announced that The8, alongside bandmate Jun, would be temporarily taking a break from Seventeen activities in order to work in China for the rest of the year.