[Inner World] + [Scheming] + [No Female Lead] + [Mastermind] + [Changing the World] + [Otherworld in the Later Stages]
Personality: [Scheming] + [Shameless] + [Pragmatic: whoever feeds you is your mother]
Han Feng accidentally discovers that there is a small world inside him, but it is on the verge of collapse. To stop it from falling apart, he needs the power of human faith. After careful consideration, Han Feng decides to take over the small world for himself, using its power to harvest the faith of every religion in the world. To keep things going, he occasionally throws them a little something in return.
In modern terms, it is a story about capitalists exploiting workers.
[If you don't like the foreign part, you can skip straight to Volume Two, “Preaching in Asia.” Don't worry, there won't be any major continuity gaps. If there are, just pretend I never said that. Haha...]
Although there are many loopholes, as long as you put your mind aside, this is a pretty good article.