"Emergency Man and Woman" Song Ji Hyo's hidden controller was Choi Jin Hyuk.
On the 8th episode of tvN "Emergency Man and Woman" broadcast on February 21st, Oh Jin Hee (played by Song Ji Hyo) who was fired was so happy and drew in Gook Chun Soo (played by Lee Pil Mo.)
On this day, Oh Chang Min (played by Choi Jin Hyuk) receives a pink slip and asked him to cancel his firing. Oh Chang Min said, "I'll do whatever I want" and wanted to help him zealously.
Oh Chang Min's favor worked. Oh Jin Hee's firing was instantaneously cancelled. At this, Oh Jin Hee thought that Gook Chun Soo had helped him and hugged him happily.
Oh Jin Hee was spared from being fired and Oh Chang Min relaxed but Gook Chun Soo hugged her and they were conflicted. Oh Chang Min looked a bit unhappy and expressed gratitude towards her uncle and made viewers feel sad.