Hyuk debuted as a member of the South Korean boy group VIXX in May 2012,[2] and began his acting career in 2016 in the comedy-action film Chasing as Han Won-tae.

[17] On February 13, 2016, as a Valentine's Day gift for fans Hyuk released a cover of Justin Bieber’s “Love Yourself”, which was uploaded exclusively to VIXX's official YouTube channel.

[20][21] On January 25, 2017, Hyuk released his very first self-composed song as a gift for fans for Lunar New Year, with the title "Hug" (Korean: 안아줄게; RR: An-ajulge; lit.

[22][23] On September 4, 2017, it was confirmed that Hyuk will be starring in a law romcom drama with Apink's Chorong and his former co-actor from Chasing Kim Mingyu that will air on Naver TV and Channel A during October.

[27] Hyuk was later cast in the Forgotten Village play as Jae-gu, a professor at a young age from Law School of Seoul National University.