Green Pepper Bat Donburi

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.
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"Have you ever heard of the God of Games?"
"The God of Games..?" Eleena shook her head in puzzlement. "I have never heard of Him…"
"What if the God of Games could give you the power to defeat your enemies?" Xi Wei coaxed patiently.
Eleena remained silent for a while, before resolutely lifting her head and fixing her gaze on Xi Wei. "Then I am willing to become a believer of the God of Games!"
"Belief isn't something to only be spoken by mouth. Close your eyes and envision His name in your mind, and feel His power with your heart," he said solemnly.
"O Master of Games, grant us new life!"

I Am the God of Games

The Follower System obviously wasn't just a random idea Xi Wei had while stalking his believers.

In reality, he had already been mulling the idea over ever since he redesigned the Pantheon Computer.

Since most current frogmen were still believers of the Aquatic Lord, even if Xi Wei absorbed the divinity of the Aquatic Lord, as long as he didn't inherit the god's deific properties and divine order, he still wouldn't be able to gain many followers from the frogmen.

Along the same line of thought, it would be difficult for him to give blessings to the frogmen too. Xi Wei couldn't even show the full extent of his Divine Grace to the frogmen either.

Wake Up, There Are Chores To Do