The Substitute Bride - Chapter 2073

Kurono Maou is a high school student who is sensitive of his sharp eyes and bad expression. No girlfriend but gifted with friends in his own way, he had been living a peaceful life.

“You want me to go on an impossible journey, sacrifice everything, and risk my own life for a mere 1,000 gold? Hell no!”Lukas never really had anything going in his previous life. When he found himself transmigrated into a new world, he had hoped the soft and gentle touch of a hot milf would mark the beginning of a lavish lifestyle befitting a king.Instead, he quickly learned that he was just some random extra. Worse than that, this extra was only known by everyone as the “Divine Simp,” someone who would do whatever the gods asked.“Divine Simp? Fuck that!”Refusing such a pitiful existence, Lukas decides to take this new life in his own hands. Instead of waiting for some lavish life to fall in his lap, he would create one for himself.How?Well, the gods seem to love him. They shower him with quests, thinking that he will just take them for free. Little do they know... that old extra is dead and gone now.The Divine Simp has become the Divine Extortionist: someone who can obtain the greatest rewards for completing the easiest tasks.

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world’s first sect.

Before his death, the previous chief told him:

“If you don’t become the best in the world for one day, you are not allowed to go down the mountain for one day.”

So he closed himself in painstakingly, crossed the heaven gate in his body, and faced off against the ancient and modern powerhouses…

…

Many years later, Chen Sha recalled the day he went down the mountain,

From the moment he descended the mountain, he was number one in the world.

In the next ten epochs, any gods and demons have returned, immortals and Buddhas have lived in the world, ancient powers and ancient gods have appeared one after another.

No matter how the times change, he has always been No. 1 in the world and has never changed.

- Description from novelbuddy

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