Stage name Yunho, he is a vocalist and dancer in the eight-piece group ATEEZ. He was featured on the Mnet reality show Operation ATEEZ.
He graduated from the School of Performing Arts Seoul.
He auditioned to be on MIXNINE but did not advance. He was accepted into Joy Dance and Plug In Music Academy.
His younger brother's name is Gunho.
He previously attended Seungri's Dance Academy.