Yu Hae-jin "Lee Sung-kyung and "Porposin"? I'm not comfortable...I'm sorry."
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About Lee Sung-kyung
Lee Sung-kyung is a South Korean model, actress and singer. She is best known for her roles in television series Cheese in the Trap, The Doctors, Weightlifting Fairy Kim Bok-joo, and Dr. Romantic 2.
 Wikipedia