In "Punch" Kim Rae Won found a conclusive piece of evidence. Finding the black box media footage of Kim Ah Joong's accident in On Joo Wan's car, his discovery foreshadowed a change in plot.

On the 18th episode of SBS Monday/Tuesday drama "Punch" (script Park Kyung Soo, director Lee Myung Woo) broadcast on Feb. 16th, Lee Tae Joon (played by Jo Jae Hyun) and Park Jung Hwan (played by Kim Rae Won) collaborated. They decided to catch Yoon Ji Sook (played by Choi Myung Gil) who had run over Shin Ha Kyung (played by Kim Ah Joong).

Nonetheless, after finding out this truth, Lee Ho Sung (played by On Joo Wan) first arrested Lee Sang Young, son of Yoon Ji Sook, as a suspect In the hit and run accident. Yoon Ji Sook said that she would confess but he said, "Prosecutor, why do you want to not lose anything? I lost a friend. I'm going to go forth in a secret investigation. Even after Lee Tae Joon backs out, take the responsibility as a special prosecutor and take a step back. After a year or two, you'll be able to resume your position." With that, he was able to convince her.