Became a Medieval Fantasy Wizard - Chapter 13:

The little handsome son-in-law passed through a world as waste material and the husband of a wealthy family. But because of his lacking aptitude, the wealthy family had driven him out. So he worked hard and found a more powerful family’s thighs to hold onto. Soon enough, he became the strongest son-in-law and husband in history.

In this world, it was impossible to practice martial arts. It was futile so he might as well take advantage of his wife’s thighs and maintain a comfortable and leisure lifestyle.

He’ll train his wife to become the strongest and best person in the world.

“Whoever dares to provoke me, let my wife kill you!”

- Description from Novelupdates

Eluard Kai found himself transmigrated to a magical world.

A steward came over and declared that he was now the academy master of the school in front of him before disappearing to nothingness.

“That damn steward said I am now the owner of this place then left me all alone! What the hell am I supposed to teach them anyway?!”

He feared that some prodigious arrogant young master would come over and enroll when he himself didn’t know what he was supposed to do.

“But this is a deserted academy, right? No one should come over here, right?”

Unfortunately, his nightmare came about.

“Academy Master, I am here to enroll in the Heavenly Magic Academy. Please allow my request in behalf of my lackluster talent.”

Eluard Kai almost blacked out until he heard a prompt in his head.

[ A student requests to enter the Heavenly Magic Academy. ]

[ Accept the request? ]

A young boy genius, Suo Jia, is a water mage who dreams of being a warrior travelling the great and dangerous trade routes to find his lost father that set off on them before Suo Jia was born. Having to look after his sick mother, Suo Jia manages to find a way to solve all their problems, as well as make a name for himself. He gathers nobility, vast wealth, items of great power, knowledge lost to the ages, and exceptionally talented females around him as he plots and plans – preparing to set off on an epic journey that will go down in history as a new legend. However, will others that depend on his powers so much be willing to let him go on such a dangerous journey so easily?

- Description from Novelupdates

I found a girl of unknown origin outside; she claims to be a time traveler from a post-apocalyptic era.Great calamity is imminent, with abominations spreading across the land, human civilization annihilated, and even the world itself shattering, all beyond redemption.As for myself,I am considering how to confine this beautiful girl, who has temporarily lost her powers, within my home.