Travel Through the Apocalypse and Become a Boss

The male protagonist died in a car accident and traveled through time. This is a world with scarce resources in the end of the world, and the male protagonist has awakened to the system. Here, gold, silver, jewelry, and food are the most important thing. The male protagonist's system can be exchanged for anything, but he needs to get gold. The male protagonist uses his intelligence and wisdom to start his own road to a big boss in the end of the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.