Premise: Park Bo-gum (; born June 16, 1993) is a South Korean actor. He gained recognition for his diverse range of roles in film and television, notably, a psychopathic lawyer in "Hello Monster" (2015), a genius Go player in "Reply 1988" (2015–2016), and a Joseon Crown Prince in "Love in the Moonlight" (2016).
Hypothesis: Park Bo-gum had his first big role in his 20s.