Claim: Weightlifting Fairy Kim Bok-joo has Lee Sung-kyung in a principal role.

Lee Sung-kyung -LRB- born August 10 , 1990 -RRB- , is a South Korean model and actress . She acted in the television dramas Cheese in the Trap -LRB- 2016 -RRB- and Doctor Crush -LRB- 2016 -RRB- before taking her first leading role as the titular character in Weightlifting Fairy Kim Bok-joo -LRB- 2016 -RRB- .