Lee Sung Kyung dating "Weightlifting Fairy" co-star Nam Joo Hyuk? Here are evidences that prove they might be a couple in real life!
After Ji Soo successfully surprises his real life best friend Nam Joo Hyuk with an appearance at his first fan meeting, Lee Sung Kyung also low key supported her "Weightlifting Fairy Kim Bok Joo" leading man as a part of the audience.