How Did I End Up Becoming a System?

After waking up as a System, the protagonist feels his way along, one step at a time. Having tricked ninety-nine Hosts, he finally gets his hundredth. But then he receives a warning: if he fails again, he’ll be destroyed. Only then does he start taking his job as a System seriously, gradually uncovering the secrets of the entire World Tree and the conspiracy behind its administrators. Why were the millions of worlds on the World Tree created? Is the System a force for good or evil? Why do the rebels defy the rules, and what drives them to destroy the worlds? Let me tell you the whole story.