The Beloved and Pampered Girl - Chapter 1213 - : Afraid of Dirtying My Hands

James, a brilliant mechanical engineer and passionate history enthusiast, loses his life in a tragic house fire—only to find himself in a mysterious world as the ruler of an island nation. Armed with his modern knowledge and unwavering ambition, James embarks on a bold mission to industrialize his kingdom and build an empire on which the sun never sets.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Having spent her childhood confined in chains, Alice was a child who knew neither love nor joy. Scorned by her family while being tortured in the name of the greater good for years, she grew numb to all feeling and thought. That is, until one day, a man in black offered her a chance to escape.There were once rumours widespread of an endless hell, a land of glorious death and dreadful opportunity. Fools went in search of it, and the clever never ventured into it. Only when its baleful mysteries spilled unto the earth did all hear its name — the Abyss.A single drop of its blood could give someone the power to control shadows, move faster than sound, or strength greater than the strongest man. Yet, it all came at a cost; the blood would always make sure those who consumed it became part of the Abyss, with one exception — Alice. Cast away by her own blood, it was her destiny to rot in a gilded cage.But, that fateful day changed everything. Gifted a second chance at life, a chance to turn her life around and claim vengeance against her family, a chance to dive deep into the Abyss and gain the power to govern her own fate, Alice took his hand, unaware of the destiny unfolding before her.

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