Timeless Assassin - Chapter 37: The Mu Clan?

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

[ Warning: Mature content (R-18)]In a world where the strong is king and weak don't have any right to even raise their heads.Eric, a boy of humble origin, was beaten to half-death state and thrown into the Demon abyss.Luckily, he survived and even got a life-changing opportunity in the form of [Godly Devil System]However...“What? I'm a half devil and the most suitable path for me is of a Dual Cultivator?!”Join Eric as he rises from the bottom, breaks the societal norms, and create a place himself for the world.

System: You are now a lowly male supporting role, a passerby who wants to go offline at any time, please keep secretly and grow vulgarly.
Shi Yan: Very good, thank you for your suggestion.
The first world: Shi Yan, as a little prince born in a cold palace, made himself an emperor.
The original male and female protagonists, under his witness, became grudge couples.
The second world: Shi Yan, as the youngest son of the princess who died tragically, made himself a powerful minister over ten thousand people.
The original male and female protagonists, under his witness, became grudge couples.
The nth world: Shi Yan, as a genius in the world of comprehension, has made himself the number one powerhouse in the Three Realms.
The original male and female protagonists, under his witness, became grudge couples.
The system feels that something is wrong.
Shi Yan instead persuaded him: Let the male and female protagonists come together in the end no matter what the circumstances are, isn’t it the self-cultivation of the tool man and the male partner?

Content tags: Kuaichuan Shuangwen Metaphysics
Search keywords: Protagonist: Shi Yan ┃ Supporting role: ┃ Others:
One sentence introduction: The male partner is beautiful alone
Purpose: strong heart, unmoved by wind and rain

- Description from novelbuddy

[Warning: Mature Content]Chuck was a 20-year-old professional body pillow reviewer who spent his days testing anime waifu pillows for online stores. His life was pathetic, lonely, and consisted mainly of rating the softness of fictional girlfriends.Then truck-kun struck.One evening while walking home from another humiliating day of pillow fondling, Chuck got obliterated by a speeding delivery truck. Instead of meeting his maker, he woke up as a newborn in a parallel world... a very different one from the one he knew. A second chance awaited, and he looks to make good use of it.However, he runs into the impossible; Chuck finds himself thrust into a society of proud lioness princesses, fierce wolf ladies, and noble panther heiresses, daughters of warlords.In hindsight, all those years of pathetic pillow fondling had been preparing him for this moment—a world where his wildest harem dreams weren't just possible, they were inevitable.