In the shadows of the S Ranked Main character - Chapter 1: In my next life?

The little handsome son-in-law passed through a world as waste material and the husband of a wealthy family. But because of his lacking aptitude, the wealthy family had driven him out. So he worked hard and found a more powerful family’s thighs to hold onto. Soon enough, he became the strongest son-in-law and husband in history.

In this world, it was impossible to practice martial arts. It was futile so he might as well take advantage of his wife’s thighs and maintain a comfortable and leisure lifestyle.

He’ll train his wife to become the strongest and best person in the world.

“Whoever dares to provoke me, let my wife kill you!”

- Description from Novelupdates

[TRIGGER WARNING: DARK THEMES, MATURE CONTENT.]In a world where humans, werewolves, vampires, fey, and other supernatural beings coexist, Isleen; an Omega who has been subject to multiple bullying and ridicule in the pack because of her parent's past, faces a challenging dilemma. She's dating Kylo but unexpectedly discovers that his strict father, Rhett, who is the pack’s Gamma, is her destined mate.Conflict arises as a war breaks out among the supernatural creatures and the death toll rises. Isleen struggles with her loyalty to her boyfriend, and the powerful pull she feels towards his father, due to the mate bond.——Imagine getting married at Eighteen to a woman old enough to be your mother– all because of your loyalty to the Moon Goddess?Welcome to Rhett’s reality. Rhett DarkWater is a man of principles but not without his share of secrets and hidden missions. After finding out who his second fated mate is, he battles with his devotion to the Moon Goddess, his loyalty to his son, and his duty as the Gamma who is supposed to protect the pack—not have his son’s girlfriend pinned beneath him in a corner with her clothes off.Unfortunately for Rhett and Isleen, the mate bond knows no morality – it attacks, and when it does, two hearts must become one.——I and Gamma Rhett just kissed again.He knelt before me, his hand reaching out to touch me, but I flinched away. “Isleen,” he muttered.“This is wrong,” I cried. “We can't do this. It's forbidden. W-what about Kylo?”He stared at me, his eyes burning with a passion that frightened me to the core. Yet, it left tingling sensational effects all over my body. “Don't fight it, Isleen. We are mates. This is what we're meant for.”

Defiance of natural order of a single young Dragon soul.

Heed my call! O’ Dragon of Eternal Sin, the Progressive Disaster, the Forerunner, the Land of Eternal Peace, the Flames of Soul Burning, He Who Owns The Deep Soul, the Sound of Origin, the First Cause of All Things, the Principle of Circles… o’ great Negary, your servant calls for your return!