A retro office comedy depicting the chaotic events that unfold in the late 1990s when Sammo Hung, a 30-year-old elite securities supervisor who only cares about work, goes undercover as a 20-year-old high school graduate employee at a securities firm where suspicious money flows are detected.
While investigating Hanmin Investment & Securities, Hong Geum Bo faces a setback after meeting an informant — forcing her to go undercover.
Disguised as a 20-year-old employee, Geum Bo cozies up to Ko Bok Hui for intel — until her heart skips a beat when Sin Jeong U arrives at work.
While avoiding Jung-woo, Keum-bo continues investigating leads undercover. Meanwhile, she clashes with Bok-hee - causing tension at home.
Despite preventing a disaster at work, Keum-bo faces imminent termination. While trying to secure her employment, she tries to track down "yehppee."
A new arrival at the residence bothers Keum-bo. After learning of a spy, Chairman Kang orders an internal hunt — pushing Keum-bo to find "yehppee" first.
To get closer to the truth about the slush fund, Keum-bo tries hard to win the top employee contest. Later, Jung-woo confronts her in a stuck elevator.
Keum-bo witnesses a secret meeting between Albert Oh and a nefarious man from her past. Her suspicions grow as she closes in on what he's hiding.
Keum-bo finally tracks down "yehppee," who won't cooperate. But when the IMF crisis hits Korea, her investigation takes a sudden turn.
The brutal IMF financial crisis shakes the lives of four roommates. Meanwhile, Jung-woo begins a cutthroat restructuring of the company.
Committed to her mission, Keum-bo moves forward with her plan to protect Hanmin employees — but Jung-woo keeps getting in her way.
Keum-bo and Bok-hee bravely set their plan in motion to handle slush funds. Meanwhile, they find a puzzling online community.
Now with a team assembled, Keum-bo launches an operation to go after corrupt company executives. The first target? Albert's father Oh Deok-gyu.
Song Ju-ran erupts in anger upon discovering a hidden truth. Meanwhile, Keum-bo sets her sights on taking down Chairman Kang's allies one by one.
Keum-bo approaches Jung-woo with an intriguing offer. Meanwhile, Ju-ran schemes to pin her failures on a scapegoat.
After a violent attack on Keum-bo and the roommates, the Yeouido Pirates plot a new plan — striking Chairman Kang from within as a Hanmin shareholder.
As Chairman Kang continues to reign amid betrayal, can Keum-bo and the Yeouido Pirates finally deliver justice and a better future?
