"The most dangerous place is not the streets where gangs are fighting, but the office buildings where gangs are fighting openly and secretly."
In order to fulfill his promise to his dead brother, a young gangster who had just washed his hands of the underworld put on a suit and sneaked into the CBD, becoming an ordinary newcomer in the workplace. He thought he could live a peaceful life for a few days, but he found that the intrigues and conspiracies here were a hundred times more dangerous than when he was in the world. When competitors hire thugs to hurt people, and when workplace bullying becomes a physical threat, the "means" he once put aside gradually begin to wake up.