Je-0 Gyodogwan

Jihun, a former member of an elite special forces unit, returns home after his sister Jiyun’s death. Her boyfriend, Minjun, is accused, but Jihun discovers he was wrongfully imprisoned in Yeokseon Prison to investigate the real perpetrator. After Minjun is found dead within the facility, Jihun rejects the official explanation. He becomes a prison officer to uncover the truth behind the deaths and the unseen powers managing the prison.