Sunoo

On June 1, 2020, Sunoo was introduced as a contestant in the CJ ENM and Big Hit Entertainment's reality survival show I-LAND. On September 18, 2020, he was chosen by the producers and became the last member of the boy group ENHYPEN. On November 30, he then debuted in ENHYPEN with the release of their first mini album Border : Day One.

On February 7, 2022, it was announced that Sunoo, alongside Jungwon, would be the new radio DJs for the EBS radio show Listen. Their first episode would then be broadcasted on February 13 and will air every Sunday from 7 to 9 PM KST. However, on February 11, it was announced that Sunoo had tested positive for COVID on the 10th after going to the hospital for fever symptoms on the 9th, and so their first broadcast will instead be postponed to February 20.