The strongest assassin rumored to be the best in the South Korean government's assassination team. Codename: Garnet, Guest.

The success rate of assigned missions was 100%. A professional of such skill that not a single flaw could be found.

Then one day, the government asks Guest to investigate a rising cult called the Baekmi Cult. It was a mission where immediate execution was permitted if the religion was deemed a threat.

The problem, however, was the approach. Currently, the Baekmi Cult was not recruiting new male followers. They were only recruiting women.