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tvN has unveiled a new poster and an exclusive teaser for « Undercover Miss Hong« further heightening the tension surrounding the secret mission of Park Shin-hye. In this office comedy set in the late 1990s, the heroine's undercover mission quickly takes a much more chaotic turn than expected.
An undercover mission that goes wrong from the start
In Undercover Miss Hong, Hong Geum-bo is a 35-year-old elite financial investigator forced to erase her identity to pose as a 20-year-old employee within Hanmin Securities. His goal: to get his hands on a hidden account book, evidence of a vast hidden fund.
But no sooner had Geum-bo infiltrated the organization than she encountered two major obstacles that immediately threatened her cover.
The poster perfectly illustrates this explosive situation: behind Hong Geum-bo, now recognizable by her bob haircut and rejuvenated style, stand two key figures in the company. Their mere presence is enough to throw her plan into disarray.

An ex-boyfriend and an unpredictable heir: the mission turns into a nightmare.
The first is Shin Jung-woo (Ko Kyung-pyo), the new CEO of Hanmin Securities... and Geum-bo's ex-boyfriend. Fifteen years earlier, they had been in an innocent relationship before Geum-bo abruptly ended it, calling him a «pathetic coward». Their sudden reunion plunges the heroine into a state of panic, forcing her to hide her face so as not to be recognized.
The second unexpected event is called Albert Oh (Cho Han-gyeol), a third-generation chaebol heir who joined the company at his grandfather's request. Their first encounter had been disastrous: an awkward altercation in a video store had left Geum-bo with a terrible impression, to the point of considering him a «pervert». Seeing him reappear as a parachuted-in department head only makes his situation worse.
The teaser reinforces this sense of urgency. Assigned to a mission of three months in hostile territory, Geum-bo finds herself surrounded by figures from her past who could blow her cover at any moment. Between unspoken words, grudges, and absurd situations, the comedy promises an office dynamic that is as explosive as it is unpredictable.
Undercover Miss Hong will make its debut on January 17, 2026, at 9:10 p.m. (KST).
