Si-o was the director of DOOGO, the company who sells anything.. And in secret, drugs, they start getting more and more popular, more people dying by the new fatal drug created by the scientist hired by Si-o, the antidote being only a small one, Only Si-o owning it.. And a girl with super strenght, daughter of bilionare Geom-ju who hates drugs and wants to make the world better, gets under-cover for her mother and the police working at DOOGO, you can guess how it ends.. 