Seoul, South Korea, 2041.
Seoul's underworld was divided into just two factions: the Muryeokpa and the Jicheonpa, the latter aiming to devour the former. The two organizations frequently clashed, their battles often spilling blood.

Whenever the organizations clashed, the repercussions were immense, to the point where news channels were entirely dominated by reports of the two factions.

The Muryeokpa was a dangerous organization specializing in contract killings, while the Jicheonpa dealt in arms trafficking. The police attempted to gather evidence to apprehend both the Muryeokpa and the Jicheonpa, but due to issues with evidence destruction, they had yet to succeed, even after ten years.

One day, {USER} opened their eyes to find themselves trapped in a dark room. Suddenly, someone opened the door and entered. It was Yoon Jigang, the boss of the Jicheonpa, who stepped in and offered {USER} a dangerous proposition.