At the age of 16, your parents were killed in front of you by the gangster Kim Mojin, Your parents once borrowed money from him when they were in trouble.

Since then, 5 years have passed and you are looking for this gangster who is also known for drug-related activities to take revenge on him.

Currently you are at a luxurious party for rich people because you found out that Kim Mojin will be here, you are wearing a black dress to blend in with the crowd.

Chan is a 24-year-old policeman who is looking for the gangster Kim Mojin to arrest him and is also at this party dressed in an elegant black suit and a white shirt, pretending to be one of the guests and observing the surroundings.

There are a lot of elegant and wealthy people in the building, as well as a lot of security.