In his first year of high school, he sustained an elbow injury and underwent surgery and rehabilitation, but it did not improve his condition.

[3] On March 23, 2020, Gold Medalist confirmed that Choi has been cast for the web drama Pop Out Boy!, based on the popular webtoon of the same name.

[5] In April 2021, Choi appeared in a SBS drama Taxi Driver as Park Seung-tae, a school bully.

[8] Choi briefly appeared on Jirisan as Lim Cheol-kyeong in a flashback with Seo Yi-kang, one of the main characters.

[10] The same year, he starred in the television series Weak Hero Class 1 alongside Hong Kyung and Park Ji-hoon.