Nam Joo Hyuk, who plays a swimmer named Jung Joon Hyung, and Kyung Soo Jin or Song Si Hyo, a rhythmic gymnast, were once lovers who became close sunbae-hoobaes after their breakup. The set of photos revealed on November 1 shows them when they were deeply in love.�A love triangle is�expected between�Nam Joo Hyuk, Kyung Soo Jin, and�Lee Sung Kyung.�

SEE ALSO: Nam Joo Hyuk's school violence accuser classmate appeals summary order, requests formal trial

You can catch 'Weightlifting Fairy Kim Bok Joo' starting November 16!