Mercy for None (season 1)

Mercy for None is a gripping 2025 South Korean noir action drama series streaming on Netflix. The story centers on Nam Gi-Jun, a former enforcer for the notorious Bong San Gang, who once played a pivotal role in expanding the gang's power through violent turf wars. Driven by a desire to protect his younger brother, Nam Gi-Seok, Gi-Jun made the drastic decision to leave the criminal underworld, even going so far as to sever his own Achilles tendon to ensure his exit. Eleven years later, Gi-Jun has built a quiet life, delivering drinks to businesses connected to his old gang. His fragile peace is shattered when his brother - now the second-in-command of a rival organization, the Joowoon Gang - is found dead under mysterious circumstances. Consumed by grief and a relentless need for justice, Gi-Jun is pulled back into the world he once escaped, determined to uncover the truth behind his brother's death and take revenge on those responsible.