On the Feasibility of the Demon King Becoming a Sage of Humanity

This is a world where humans and demons coexist.

Legend has it that when the millennium arrives, the greatest sage in human history will lead the most loyal Temple Knights in sealing the Great Demon King.

With the millennium fast approaching, the demons are in a panic, but the Great Demon King remains unconcerned.

Great Demon King: "What's the rush? Let's find the great sage ahead of time and nip him in the bud."

The plan went extremely smoothly. Thanks to the efforts of countless diviners, the Great Demon King quickly pinpointed the great sage, who was still a child, and prepared to assassinate him.

But the backlash from the magic left the Great Demon King unconscious. When he woke up...

"...Uh, so I've been sealed inside this human brat?"

When in Rome, do as the Romans do.

The Great Demon King readily borrowed a human identity and infiltrated the Sage Academy, deep in enemy territory.

But...

"...Uh, this is the highest institution of learning for human mages?"

"...The magical theories are way too outdated."

"...Uh, the textbooks are full of mistakes."

"...I can't take this anymore! If you don't know how to teach, then don't teach. Stop misleading the next generation!"

Unable to bear so much faulty teaching, the Great Demon King decided to take charge of the lessons himself.

Thanks to his tireless efforts, the children at the Sage Academy flourished, and the Great Demon King earned their respect and affection. His reputation grew by the day.

At last, the crown of the great sage fell upon his head, just as expected. All of humanity eagerly awaited his lead as he marched triumphantly with the Temple Knights to seal the Great Demon King.

The Great Demon King wiped away a tear of relief. "Wonderful! I've waited for this day for so long... Wait, the great sage? Me? Sealing the Great Demon King???"

#TheAwkwardnessOfTryingToKillYourself#

Theme: Wish fulfillment