prologue.

Being on the dark side isn't always bad. It's often easier to see which lights are real and which aren't. It's easier to see whether the words of smooth-mouthed politicians are true or not when their lives hang on a thin string that controls them like stage puppets.

Turning real criminals into puppets and begging for death is what Choi Seungcheol does. He & his underground mafia group don't care about any rules. He serves justice in his own way.

Trapped in his world is you--a worker in an online cleaning service agency he accidentally hire to dispose the body he just murdered.