The son of K-pop Dancer Ko Ji-yong, he rose to fame with his father on the reality show The Return of Superman.
His parents were married in October 2013, and he would be born a year later.
His Instagram account, seungjae.tros, has earned more than 40,000 followers.
His mother, Heo Yang Lim, is a professor of family Medicine and a Doctor.
Some other stars of The Return of Superman include Sam Hammington and Lee Dong-gook.
