The law of Fiction: Harem in the fiction world - Chapter 21 Ch 19: The Aunt From Hell [Pt1]

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

In the ancient land of Yamato, seven powerful clans rule, each upholding their own traditions and strength. But when one clan seeks forbidden power, the balance of the world is shattered. Legends tell of warriors destined to rise, of a hero who will walk the sacred path, and of a battle that will shape the future of Yamato. As alliances are tested and enemies emerge from the shadows, the line between justice and power begins to blur. Will strength alone decide the fate of Yamato, or will a greater force change its destiny forever?

On modern-day Earth, An Lin seems to have been abandoned by God.
When his father suddenly disappears, An Lin is left with his father’s immense debt, putting his life at risk.
After being forced to a rooftop by his pursuing creditors, An Lin is unexpectedly swept off his feet and brought to the ground safely.

Born at the lowest grade, nobody thought Percy would amount to much.Everything changes when his bloodline manifests in an unexpected way, letting him possess random bodies across the cosmos. Snatching all sorts of advantages - like a second mana core - Percy can finally claim the resources and respect he's been denied.Yet, reaching the top won't be easy. Not every journey yields a valuable treasure, and neither the warring Houses nor the invading gods will wait for him to grow...***What to expect:- Weak to strong male MC- Daily releases- Fast paced with frequent powerups- Fantasy setting with magic and a system- Isekai elements (Percy often possesses random bodies on distant worlds)- Western cultivation elements (Cleansing mana core to extend lifespan)- Morally grey MC (Willing to break a few rules but not a scumbag)