Please help me find the title of this manhwa! :<

It has a similar plot of Solo Leveling, the Male MC became poor because he kept gambling all his money. I think he was sleeping outside then a girl approached him making a deal. After accepting the deal, he was teleported to an auditorium with other random people. They were ranked by the colour of their bags, and they have to survive there because they are monsters. That's all I could remember, thank you in advance guys! ε=ε=(ノ≧∇≦)ノ