The Simple Life of Killing Demons - Chapter 57Book 12:

Doomsday comes, and human beings enter the heavenly world.
Ten years later, Yang Chen, who was betrayed tragically, returned strongly with the Tianyu bug. In this life, he vowed to make the betrayal pay the price. He has a powerful bug bonus, just like an open hang. Frightened to hear…

- Description from novelbuddy

Content Warning: R-18, Smut, Cruel MC[Ding! You've acquired the Heroine Stealing System!][Your first task is to steal the daughter of the Eastern Kingdom's king!][Your Fate Value has increased by 10!][You've slept with the hero's mother, your Fate Value has increased by 15!][The hero has developed animosity towards you. Current Hatred Level: 5 stars][The king's wife is charmed by your looks.]After being transported from his own world, the protagonist wakes up as Vritra, the son of Demon King Rohan from the Hell Continent.Since he's from another world, he doesn't have any Fate Value in this new world of swords and magic.To survive, he has to act like a villain, stealing the affection of every hero's heroine and sleeping with them.This will boost his Fate Value and help him stay alive in a world filled with wars and political conflicts!

(Mature Content)

What price are you willing to pay for freedom?

The wolf-less and orphaned Tania was trapped in the life of a slave.

A part of her spirit was held captive by her master to exert control.

To gain freedom, she made a deal to spy on King Eltanin, the most ruthless and powerful Alpha of Araniea.

Stormy-eyed libertine, King Eltanin was dominanting, arrogant and commanding as hell.

Racing against time to save his wolf and kingdom from the demon king, Alpha Felis, he crosses paths with Tania. She is a spy, and temptation personified.

And now Eltanin must choose between the fate of his kingdom and his mate.

Will Tania choose her freedom and reject her mate?

Or will she give up the only thing she ever wanted?

Thesaurus definition of “Libertine”: debauched Synonyms for libertine: freethinking, profligate, dissolute, immoral, lascivious?