MTL - A Walk-on Actor Who Wants to Be A Baker - Chapter 27

Ling Xiao was accidentally reborn into the zombie world and became Ninth Uncle’s younger brother.

Awakening the sky fire system can awaken endless strange fire.

At the same time, you can gain experience points, spells, magical powers, constitution and other rewards by burning all things in the world.

And at the beginning of the game, he awakened the mighty Qinglian Earth Heart Fire, and just as Mr. Ren came out of the coffin, he was burned to ashes by Ling Xiao’s palm.

“Senior brother Shi Jian came to kill him? Just in time, let him see how powerful the Nine Dragons Thunder Gang Fire I just awakened is!”

“The ghost king of Fengdu Ghost City is coming to arrest me? Just to show you the taste of hell fire!”

“Ding…Congratulations to the host for burning the sun, gaining experience points: 10 billion! Obtaining bloodline: Golden Crow Divine Body, turning into a new sun!”

………………

With the awakening of various kinds of different fires, and the improvement of his strength, Ling Xiao rose from a mere mortal against the sky, and finally burned the heavens and myriad worlds to create his own, the Great Dao of Heavenly Fire!

- Description from novelbuddy

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

The one single goal in life of the Strongest Old Sage is to subjugate the Demon King. In an epic final battle, both of them met their mutual destruction at each other’s hands.

However, the Demon King was not completely destroyed!

In order to destroy the Demon King once and for all; post-death, the Old Sage trains in the World of Gods and reincarnates as the Apostle of the Gods, Will.

In the reincarnated future, the Old Sage had become a legend and his former disciples hold the supreme authority in the world. The disciples had created an organization to oppose the Demon King and an academy to nurture the new generation of Heroes.

Thus the Apostle of the Gods, Will (8 year old), enrols into that Academy of Heroes.

This is the story of a boy on a mission to save the world through epic battles while enjoying Academy life.