Ultimate Spin System: Ero Spin? - Chapter 5 - 0 - Someone’s Wife

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

After a night of indulgence, An Ge became pregnant with the powerful and influential Mr. Huo's child.During the pregnancy, the powerful man frequently drew her blood.In order to save her life and protect the child in her womb, she shocked everyone by saying, “Mr. Huo, I'm carrying your child!”The man sneered, “Are you trying to blackmail me or do you wish to die? If so, I'll grant your wish!”Disheartened, she faked her death and fled with the child.Later, that man, who was always cold and harsh to her, knelt before her grave for three days and nights.Later still, word somehow got out that she faked her death, and he became enraged, locking down the globe in a frenzy to find her.Finally, one day, he cornered her at a wedding, furiously roaring, “You can't marry him, I'm the real father of the child!”An Ge squinted and smiled slightly, “Sorry, who are you?”In the time that followed, he humbled himself into the dust, every night kneeling in front of her bed, begging, “Miss An, please marry me.”

Thrown into the chaotic “god Verse,” Ryan Stone awakens a power beyond imagining: the SSS-Tier “Ultimate Infinite Extraction System.” While others struggle with mundane abilities, Ryan can deconstruct anything, from monster corpses to ancient artifacts, even the fading signatures of defeated foes, assimilating their essence to achieve limitless growth.From a desperate survivor in a starting outpost, Ryan’s unique talent propels him to unimaginable heights. He outwits cunning rivals, crushes powerful challengers in Sector-wide scrambles, and seizes control of a god Weaver, becoming a Sector Lord. But as he unravels the secrets of the lost Precursors and the cataclysmic Reality Schism that shattered their universe, his system evolves, granting him the power not just to extract, but to impose his will on reality itself.

200 years after the world has ended, the laws of society have long been forgotten.