Mercy For None: So Ji Sub's Dark Noir Ending Explained

Imagine a former tough guy named Nam Gi Jun who used to be part of a dangerous group.

One day, he had to leave this life behind.

Years later, his younger brother is killed, and Nam Gi Jun is back to avenge his death.

The story is based on a webtoon that has gained popularity.

The main plot involves Nam Gi Jun's return to the dark criminal world of Seoul.

The story involves betrayal and conflicts within the underworld.

Before leaving, Nam Gi Jun took the blame for a murder, ten years before.

The victim was part of a Seoul based gang.

The goal of the series is for Nam Gi Jun to get his revenge.