I have an Apocalypse City - Chapter 319 - : Shattered

[Completed] She only wanted to create a fake scandal, but accidentally entangled with a real male deity. Everyone says that the “Emperor Leng,” the entertainment industry's Heavenly King, Leng Zimo, is cold-blooded and ruthless, but why, why does he cling to her and refuse to let go … “Leng Zimo, let go, we have nothing to do with each other anymore!” she roared lowly. Beside her, a delicate little boy had a face as cold and stern as his, “Let go of my mom, or you will bear the consequences!”

Ethan possessed everything one could desire, wealth, happiness, luxury cars, and a loving girlfriend.He had never fought a day in his life, but then suddenly, he woke up in a different world.A world were destruction and bloodshed was the norm. A world where the weak had no place to survive.Ethan now possessing the body of a boy who had failed his awakening twice and was on his last try, now stood in this world.Can Ethan who never fought a day in his life survive in a world where battles and death occurs every second, minute, hour and day.Would he rise through the ashes of the world, or would he burn with it.

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

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