Career
Sungjae is also known for his leading roles in Plus Nine Boys and Who Are You: School 2015. Pre-debut
5 member, along with fellow members Seo Eunkwang, Lim Hyunsik, Jung Ilhoon, and former BtoB member Lee Minwoo (now ex C-Clown member TK). BTOB
The group officially debuted on March 22, 2012.
Sungjae along with Ilhoon and Lee Minhyuk took part in writing lyrics for their debut song “비밀(Insane)”.
Solo activities
On July 2014, Sungjae became a presenter for the program, A Song Foreign You with Kangin of Super Junior and Amber of f(x). He was given the stage name of YookDuk and was also joined by Got7"s Jackson, VIXX"s North and Hyuk.
The group released a music video for their single entitled Stress Come On on August 19, 2014. He was also casted in the television drama Plus Nine Boys as a 19-year old Judo athlete named Kang Minister-gu.
In late 2014, he became a cast in reality variety show Real Men and left in 2015.
On January 2015, Big Byung made their comeback with "Ojingeo Doenjang" together with the Season 2 of Hitmaker. Sungjae received his biggest break when portrayed a leading role in the teen drama, Who Are You: School 2015 as Gong Tae-kwang who is an idiotic but problematic child of the Sekang High School"s director He acted alongside Kim So-hyun and Nam Joo-hyuk.
He also received a good feedback when he competed in a mystery music show, King of Mask Singer.
He joined as Tired Bumblebee and reached the third stage of the competition with the song "Thanks" by Kim Dong-ryul. He starred in the horror-mystery drama The Village: Achiara"s Secret as the male lead Park Woo-jae.
His role is identified as police officer Park Woojae.
