Dungeon King: The Hidden Ruler - Chapter 45: [Roots of Dominion 4] - Judge of Broken Oaths

Until the time of him becoming the master of the lowest rank in the order of rankings, the lonely side of his life without luck was changed.

Xin Yun, a sarcastic young man, traveled to an unknown world by chance, but lost his chance to become the strongest because of his obsession with women... or sex. In a collision of the powers of nine powerful men, an incredible thing happened. Xin Yun was reborn back to the time when he traveled to the Isekai world. A fantasy journey is about to begin... [The comic adapted from this novel is popular all over the world]

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

Because she was obsessed with survival games, Tang Su was forewarned in her dream. She hoarded resources like crazy before she transmigrated into a survival romance game, becoming the gold-digger female support character. She would end up tormented by the female lead, and her family, who used to spoil her, were destroyed as well. As for the female lead? Six big shots with different personalities spoiled her as she rose to the top.

However, Tang Su had a shop with billions of resources, so she did not care. Outdoors, she could destroy monsters and build bases; indoors, she could make gourmet food and build squads, leading her family as they traveled across the world where dangers lurked everywhere. She made her three brothers the champions of the world and took in the lonesome final boss, living such a great life that the female lead was jealous. The final boss was handsome, aloof, and ruthless, though he was more than that in private.

While he kept everyone at arm’s length, he was more than affectionate towards Tang Su, restraining his cruelty just to get her. He carefully disguised himself as a minion and willingly revealed his fatal weakness to her, giving her all his tenderness. Unable to resist him, Tang Su obediently submitted to him. After all, everyone’s heart would race when they saw the final boss spoiling his wife! However, what was wrong with those six big shots? Why were they saying that they didn’t mind another comrade? Big shots: Tang Su, we can warm your bed for you…Shen Zhiting: Haha! Dream on!