Naruto: Reborn as Neji Hyuga After Dying in One Piece - Chapter 21. What Was That Just Now?

His fiancée, whom he had never met, had just broken off their engagement. He's then betrayed by his girlfriend and schemed against by her lover.His mother's legacy awakens him. No longer content with mediocrity, he transforms into a dragon overnight.

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

The strongest hero of humanity, Kim Sung Bin.

“Push her! You can’t let her get back up!”

“That’s right! You have to straighten out that heinous b*tch!”

A goddess of war whose fearsome reputation enveloped East Asia was betrayed and killed. Then, she was reborn as Caroline Lambert, a vulnerable lady with a tarnished reputation in New York City! Despite being the daughter of an important family, her family heavily favored her stepsister, so the bullying and physical abuse were frequent. Her fiancé, who used to woo her fervently, stood before the public with her stepsister in his arms as he declared their engagement annulled, making her a joke amongst the rich and important.

Her stepsister was also cunning enough to steal her position and take away all the affection that should have been hers, and smeared her name to the point that she was condemned by everyone! And yet, when the goddess of war reincarnated as Caroline, everything became different!

Withstanding the malicious slander, she carved out a new, bloody path. Insults from her family? Attempting to steal her late mother’s estate?

Caroline issued papers announcing that they had cut all ties, and that her mother’s estate would be donated to charity! See here, she would rather donate every coin to charity than keep them for you!

They were saying that she was a piece of trash who had nothing going for her? Sorry, but she was a prodigious doctor, a mercenary, a racer, and a top hacker…

Though Caroline wanted revenge for the body’s original owner, she inadvertently picked up a sickly, beautiful man. Seeing that he did not have long to live, Caroline agreed to his proposal… Only to find that like her, he was a man with multiple identities that could leave New York shaking once revealed!

Caroline: Aren’t you supposed to die an early death? Liar!

Edwin: It’s not a lie. My wife clearly pities me!