tvN’s Undercover Miss Hong, set in the late 1990s, continues to build tension as the investigation surrounding the mysterious whistleblower known as “Yeppi” deepens. Park Shin Hye stars as Hong Geum Bo, a seasoned financial supervisory officer who goes undercover as a junior employee at a securities firm suspected of illegal transactions.

In the upcoming fifth episode, Hong Geum Bo attends a pivotal gathering with three prime Yeppi candidates—So Gyung Dong, Bang Jin Mok, and Cha Jong Il—joined by members of the risk management team. What appears to be a casual drinking session quickly reveals itself as a strategic moment in her investigation.
Stills from the episode show Hong Geum Bo carefully observing the three men while maintaining a controlled, unreadable expression. As the evening progresses and alcohol lowers inhibitions, the possibility of unintended disclosures adds to the suspense. A remark from Albert Oh, who is unaware of the underlying tension among the trio, briefly lightens the mood.

The atmosphere shifts abruptly when Hong Geum Bo reacts to something she overhears. For the first time, her carefully maintained composure falters, signaling that a crucial piece of information may have surfaced. The change in her expression raises questions about what she has discovered—and how it will affect her pursuit of Yeppi.
By focusing on subtle reactions rather than overt revelations, the episode reinforces the drama’s balance between comedy and investigative intrigue, setting the stage for further developments in the case.