Undercover Miss Hong takes viewers back to the late 1990s and is one of the most anticipated Korean series of 2026. It blends office comedy, financial investigation, and romance. The drama also marks the long-awaited TV return of The Heirs star, Park Shin Hye. She co-stars with Go Kyung Pyo, Ha Yoon Kyung, and Cha Han Gyeol.
Fans are excited to see Park in a new role after taking on challenging roles in Doctor Slump and The Judge From Hell. The drama premieres next month, and here is everything you need to know.
‘Undercover Miss Hong’ Release Date
Undercover Miss Hong will premiere on January 17, 2026, on tvN and TVING and wrap on March 8, 2026. It will air as part of tvN’s weekend drama lineup. New episodes will be broadcast every Saturday and Sunday at 9:10 p.m. KST. The drama will have a total of 16 episodes and will take over the time slot previously held by Pro Bono.
Plot Overview
Undercover Miss Hong is set in late-1990s Seoul, just before the IMF financial crisis. It follows Hong Geum Bo, played by Park Shin Hye, a 35-year-old elite inspector working for the Financial Supervisory Service. She is calm, intelligent, and highly capable.
When suspicious fund movements are discovered at Hanmin Securities, Geum-bo is given an unusual undercover assignment. Because she looks much younger than her age, she disguises herself as Hong Jang Mi, a 20-year-old high school graduate with no work experience.
She joins Hanmin Securities as a junior employee. Inside the company, she struggles with entry-level office life. She faces awkward situations, workplace drama, and daily chaos. At the same time, she secretly gathers evidence for her investigation.
Her mission becomes more complicated when she meets Sin Jeong Woo (Go Kyung Pyo), the new CEO of Hanmin Securities. He is a sharp, numbers-driven corporate raider. He is also a man from Geum Bo’s past, and the two share a complicated history .Jeong Woo quickly notices that Jang Mi looks exactly like the woman he once loved.
Cast and Characters
- Park Shin Hye plays both Hong Geum Bo and her undercover identity, Hong Jang Mi. This role marks her return to television after an eight-year break. She portrays both a skilled inspector and a young office rookie. Park Shin Hye is an iconic Kdrama actress with memorable roles in Pinocchio, The Heirs, Memories of the Alhambra, and more.
- Go Kyung Pyo plays Sin Jeong Woo, the ambitious CEO of Hanmin Securities. He believes numbers never lie and is deeply affected by a past love. His past acting credits include D.P., Connect, Love in Contract, Private Lives, and more.
The supporting cast includes Ha Yoon Kyung and Cho Han Gyeol in key roles. Yuna from ITZY makes her acting debut as Hong Jang Mi, the cheerful younger sister of the main character.
Im Chul Soo plays Cha Joong Il, the talkative head of the Financial Supervisory Service’s research department who works closely with Geum Bo.
Production Team
Undercover Miss Hong is directed by Park Seon Ho, who previously worked on Business Proposal, Brewing Love, and Suspicious Partner. The script is written by Moon Hyun Kyung, known for Into the Ring. The series is planned and produced by Studio Dragon along with Celltrion Entertainment.
During early development, the drama used the working title Miss Undercover Boss. It was later finalized as Undercover Miss Hong.
‘Undercover Miss Hong’ Trailer
Multiple teaser trailers have been released by tvN. Plus, the network has shared official still images to build anticipation. Some teasers show Hong Geum Bo and Sin Jeong Woo in their younger days. Other stills capture their present-day reunion at the securities firm.
Geum Bo appears shocked, while Jeong Woo looks at her with a complex expression. These teasers highlight the 1990s setting and the chemistry between the two leads.
Undercover Miss Hong combines an undercover investigation with a nostalgic 90s atmosphere and romance. Mark your calendar for January 17, 2026 when it premiere on tvN and TVING.