The series revolves around , a meticulous judicial trainee who lives with his grandmother.
(Lee Yoo-young): An ambitious businesswoman who assists Yo-han for her own vengeance.
(Heo Sung-tae): A powerful and corrupt chief prosecutor. The series revolves around , a meticulous judicial
is a 2022 South Korean action-suspense thriller following a judicial trainee who enters prison undercover for an investigation and finds himself embroiled in a high-stakes survival game. Core Story & Plot
: He forms a tense partnership with Oh Soo-yeon , a successful businesswoman with a dark past seeking her own retribution, and Jang Sun-oh , a gambling genius who controls the prison's underground games. Cast & Characters is a 2022 South Korean action-suspense thriller following
: At the suggestion of senior prosecutors, Yo-han goes undercover into Seongju Prison to gather evidence against a corrupt gambling ring and a high-ranking prosecutor.
(Kim Sang-ho): A senior prosecutor who initially sends Yo-han undercover but whose motives become murky. Series Information (Kim Sang-ho): A senior prosecutor who initially sends
(Kang Ha-neul): A judicial apprentice who transforms from a naive student into a hardened "insider".