Undercover Miss Hong plot
Hong Geum-Bo is in her early thirties and works as a senior official at the Financial Supervisory Service. She's a down-to-earth, hardworking woman who thinks only of her work. She goes undercover as twenty-year-old Hong Jang-Mi, just out of high school, and goes to work for a securities firm where suspicious money flows are detected. There, she meets Sin Jeong-Woo, the new CEO of Hanmin Securities Company. He uses any means necessary to achieve his goal. He meets Hong Jang-Mi, who bears a striking resemblance to Hong Geum-Bo, with whom he was once in love. Their relationship becomes intricately intertwined.