Choi Jung In

Jung Hae Seong (Seo Kang Jun) is an ace field agent for the National Intelligence Service. But after an operation goes wrong, he's demoted and assigned to a new mission: locate Emperor Gojong's missing gold bars... while undercover as a high school student. He is sent to Byeong Mun High School, where he joins the homeroom class of temporary Korean history teacher Oh Soo Ah (Jin Ki Joo). The deeper Hae Seong delves into his mission, the more unexpected challenges he encounters – including forming bonds that blur the line between professional needs and personal connections. Making things even stranger, Soo Ah begins to notice striking similarities between Hae Seong and her childhood first love, who left her with deep emotional scars. Will Hae Seong manage to complete his mission unscathed, or will this be his most difficult undertaking yet?

Undercover High School

The Undercover Love Team 💖

MBC, KOCOWA

Joseon Dynasty widow Jo Yeo Hwa (Lee Ha Nee) leads a life of stark contrasts. By day, she is a demure daughter-in-law of a prestigious noble family, living a strict, quiet life. But by night, she secretly ventures out as a masked heroine who fearlessly helps those in need, dispensing justice with her exceptional martial arts skills. Her clandestine activities catch the attention of sharp-witted and principled government official Park Soo Ho (Lee Jong Won). As Soo Ho begins to investigate the mysterious "Knight Flower," he finds himself increasingly drawn to the mysterious woman who defies societal norms. As their paths cross, they embark on a dangerous path of secrets and an unexpected romance that threatens to expose Yeo Hwa's double life. This drama was based on the web comic "Flower That Blooms at Night" by Ttoli, Jeongro, Yuna, Beth, Lee Sam, and Jeong Myung In.