Starring: Choi Wonyoung, Hwang Jeong-eum, Lee Joon-hyuk, Sung-Jae Yook
Episode #1.6 - S1-E6
Other mistake: Kang-bae is alone in the locker room practising his dance moves until he sees Yeo-rin in the mirror. He turns around and sees that Jin-dong standing right next to him, but Jin-dong was never heard opening the door and walking through it, nor was he heard walking up to Kang-bae. (00:28:30)
Audio problem: When Weol-ju and Guibanjang are speaking after meeting up at Ji-hye's memorial, she says "I found out when I went to see Ms Shin. I can't believe this." The shot is on her whilst she says most of this line, and then it cuts to a shot from behind her shoulder where she says the final part of the line. Her mouth cannot be seen moving when the camera is behind her shoulder. (00:35:08)