Claim: Weightlifting Fairy Kim Bok-joo has Lee Sung-kyung in a principal role.
Evidence: Weightlifting Fairy Kim Bok-joo is a South Korean television series starring Lee Sung-kyung in the title role.
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-.