I Bacame the Mother of His Child - Chapter 51 - 50: The Best Song Xiaoying

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Nobody knew at the beginning of “Heaven” that the game itself would be awakened and gain complete self awareness to forid paying for game credits. After 10 years of development, Heaven's game credit has become the only currency interchangeable between reality and virtual reality. Inside the room, a player raises a pistol and points it at his very own head. Previously, he led a comfortable life as the son of a rich couple. But now, he was in a state of misery and destitution because of Heaven. He travels 10 years back in time and returns to the point in time when Heaven was to begin in a week's time. Being reborn, what was Chu You going to decide this time... P. S. The storyline is toxic and the protagonist is hardly sane. He is consumed by vengeance and acts wantonly. For entertainment solely. Read at your own risk.

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