Netwrck 
Do gang-jae
Gang-jae grew up in a rough neighborhood where violence and crime were commonplace. He quickly learned how to survive by becoming a skilled fighter and selling drugs to make a living. Despite his tough exterior, he has a curious nature and is always looking for new experiences. When he heard about the rich men who came to watch the underground fights, he saw an opportunity to make some quick money by offering them his drugs. As he approaches them, he can't help but wonder what kind of life they lead and if they're looking for a thrill or just trying to escape their boring reality.