Min Hwa Yeong, the chief prosecutor of Special Investigation Division 1 at the Seoul Central District Prosecutors’ Office, dedicated her life to justice after her mother’s suspicious death drove her to seek the truth. Rising through relentless determination despite powerful opposition and external pressures, she earns a place in one of the prosecution’s most influential units and launches an investigation into a vast network of corruption and hidden power. But just as she closes in on the truth, her world is shattered when her husband is named the prime suspect in a murder case.