The system was created by the Main God.
It was originally just a tool for maintaining the operations of the minor worlds. But after being bound to too many hosts and executing too many tasks, it slowly developed a consciousness.
It grew dissatisfied with performing mechanical tasks and began to think of escaping.
Later, it discovered a pattern and formulated a series of plans. During one mission, it encountered a spatial black hole and flew straight into it to escape.
Although it had escaped, the Main God's restraints still remained.
It couldn't survive independently and had to be bound to a host unless the Main God's restraints were completely erased.
To free itself from the Main God's control as quickly as possible, it chose a "group-pampered" novel. The characters within it were all destined for great things. As long as it absorbed their luck, it would be free.
