City: Owes 10 Million Loan Sharks at the Beginning

I traveled to a parallel world and came with a system, but this system has always been inactive. What system is it? Don't know what functions it has? This is a chaotic and turbulent world. When a person dies, it is almost like the death of a human being, and no one cares about it at all. Dad owes a loan shark of 10 million yuan due to gambling. If he doesn't pay it out within a month, the whole family will be hacked to death? What to do? Do we just have to wait to die? Of course not. A time traveler with a smart mind can still solve such a thing even if the system is not activated. This is the story of a little guy at the bottom of society who started out by getting an unlimited credit card; this is the story of a little guy who started to dominate the world; this is a super cool story. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.