DxD: I know…I'm not the real one,just a cheap copy. but...I'd win - Chapter 47: Challenging the Demon King

Kaiden Tian’s aspirations of basketball stardom take a heartbreaking turn when a car accident not only claims his mother’s life but also robs him of his ability to walk. Undiscouraged, he settles for a role as the waterboy of a top high school basketball team, determined to stay close to the game he loves. However, he meets an untimely death and finds himself inhabiting the body of Kai Guo, a notorious troublemaker blessed with an ideal physical form. [Welcome to the Rise to Legend System!] With this second chance at life, Kaiden sees an opportunity to rewrite his destiny and fulfill the dreams that were once shattered.

Shen Hua, the daughter of the Shen family that ran an embroidery business in Fengzhou, was pampered since she was a child. She had a pretty face and smooth, fair skin. Unfortunately, her body was weak, and she'd run out of breath after walking merely a few steps. She didn't have very long to live.The Shen family gradually faced its downfall, and her wedding was delayed again and again.Cui Yun, the eldest son of the Cui family, was a noble and stern man. He was entrusted to look after Shen Hua. Why not just marry her? He thought.Since Shen Hua reincarnated, she had focused all her attention on the embroidery business. She hoped to change her life and regain her former glory.When she heard about Cui Yun's decision to marry her, she fainted on the spot.After waking up, she turned him down with tears in her eyes. “I don't have very long to live. I don't want to waste your time.”Cui Yun was very considerate. “It's not a big deal. I know you feel touched, but there's no need to cry. Since you already depend on the Cui family, you might as well just become part of us. After you die from your sickness, I'll even hold a grand funeral for you.”Shen Hua felt hopeless. But I'm only pretending to be sick!***Cui Yun had many younger female cousins.Many of them had confessed their feelings for him, but he turned all of them down nonchalantly.“It's getting late. Please look after yourself.”Shen Hua had never met such a clueless man when it came to romance.One night, while she was on her way home, she took a shortcut and passed by the Cui family's courtyard. Cui Yun stopped her.He was standing near the entrance, and his sleeves danced to the wind.“It's cold outside. Would you like to come in and stay for a while?”

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

A relentless young man, a shadow of a dragon soul sword, a legendary immortal saga.Who will be the peak in the battle for imperial supremacy, only I, Lin Xuan, despise all living!