MTL - Night of the Nine-Tails, I Punch the Tailed Beast Ball - Chapter 313 Live together

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

Thousands of years ago, a small planet collided with Earth and destroyed the world. In five days, ninety percent of humans had been wiped out, leaving behind the last ten percent to earnestly struggle on death’s door.

Jinyu was one of those people who survived. Due to a special heredity trait, he could understand beast language. After the apocalyptic disasters, Jinyu had been living for a month with the few small beast brothers that he’d subdued. Previously, Jinyu had thought that he would live like that until he died. Yet, inexplicably, one day he opened his eyes to find that he was in a monstrous, lawless world that was full of vitality and life.

Jinyu’s transmigration into the future let him skip over almost one hundred thousand years. In the year 106825, beasts rule the galaxies and ‘pure’ humans are extinct. As the one and only ‘pure’ human left in the entire universe, Jinyu braves this new chaotic world to find a place for himself and thus begins to work at Beast Store number 138.

- Description from Novelupdates

The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion.

Guy Larks was famous in his original world for his widespread charity work in poverty-stricken and war-torn nations.

He was especially known for his efforts in developing schools and educational facilities for children, as well as teaching and nurturing many students.

So it was devastating news to learn that he wouldn't live past his 30th year.

But he was given a second chance! A new life in another world, as a down-by-the-dumps teaching apprentice in a world of magic and wonder. He was given no cheat, just a Repository of Knowledge holding all the information he could bring with him from his previous life.

In this new world, Guy rediscovered his life's true calling! Ride along on Guy's journey as he changes the world one budding mind at a time, as the greatest teacher this world has ever seen!