Undercover at Chaebol High

Dakyung Lee, an elite member of a criminal organization, is devastated by the death of her beloved boss, whom she cared for like a father[reference:0]. Upon discovering that Chairman Lee of the powerful Sa Yeong Group was behind the murder, she vows to take revenge[reference:1]. However, all her attempts to reach him are futile. Just as she is about to give up, she uncovers details about the chairman's son. In a final bid for revenge, she infiltrates his son's school, Chaebol High School, to get close to him[reference:2].