1.
Chong Li, AKA the strongest spiritualist in history, the supreme god of humanity, the savior who ended the apocalypse.
All of that was in the past.
A thousand years after dying, he comes back to life, changes his name to Gao Yang, and wants nothing more than an ordinary, peaceful retirement.
2.
On the first day of retirement, he picks up a kid with an enormous amount of spiritual energy but no spell at all.
Delighted to find a promising student, Gao Yang decides to teach him to become the ultimate living battery, the kind that can literally charge someone to death.
One day, on an outing, he casually rescues Kid Number Two, who was expelled from school for having a useless spell and is being hunted by his own family.
On a whim, Gao Yang teaches him how to turn trash into treasure, secretly power up, and take everyone down.
Kid Number Two's temporary guardian comes looking for him. After a pleasant chat, Gao Yang casually offers him a few pointers.
Then, at the spiritualist tournament, the guardian, who's always been a support player, takes down seven opponents in a row and wins MVP!
As the kids rise to prominence, the legend of a mysterious godfather spreads throughout the spiritualist world.
Gao, the thousand-year-old corpse who doesn't understand the internet, an antique relic: "Public safety's been terrible lately. So many scammers."
3.
Gao Yang has always thought his retirement is noisy but ordinary, and that he's done a good job raising the kids.
Until he receives an emergency message from the world's consciousness.
What? You mean that spiritualist assassin is the kid who's a living battery?
The leader of the resistance is Kid Number Two?
And the guardian? Oh, just an unremarkable information broker and underground doctor.
Gao Yang: "..."
"They even founded an organization together. I hear they have a mysterious boss behind the scenes, whom they call Godfather. He's their faith, the teacher who guides them toward their ideals."
"Chong Li, my old friend, do you know who this person is?" the world's consciousness asks.
Gao Yang: "...No idea. What a tough question."
What does anything Godfather Gao Yang did have to do with me, Savior Chong Li?!
Theme: The useless are simply resources in the wrong place; no student is impossible to teach, only teachers who don't know how; everyone's life deserves to shine with brilliance and splendor!