Martial King's Retired Life - Chapter 10Book 15:

WARNING: The MC is NOT a demon! For an explanation of the title, please see the post we made specifically addressing this matter.

Ling Xiao was an orphan fighting for survival in a dog eat dog world. There were some who had the power to enjoy a life of comfort, unconcerned with worldly matters, while most struggled to survive. He was of the second kind.

When he celebrated his sixth birthday, his father left him to the wolves with only a token to defend himself. He struggled to earn a living, scrambling together whatever scraps he could gather; fighting with the dogs for food and fighting with the homeless for shelter.

But that all changed on a fortuitous day, when a demon invaded his home. In a world of deception and plotting, one tasked with seeking revenge for the man who gave him a second lease on life, how would Ling Xiao fare?

- Description from Novelupdates

Chen Mobai, a male protagonist and a third-year student of Xianmen, is currently working hard to review and prepare for the entrance exam of the Daodao Institute.Originally, his biggest dream in life was to successfully establish a Foundation, until he was able to travel to another world of cultivation, and then his dream changed...When Wei Yuan finally had the opportunity to lie on a wooden chair and bask in the sun during a peaceful era, countless demons and monsters had already been sealed in the museum behind him.

“A cheat system? Do you take me for a fool? Nowadays, where can you find such a good thing falling into your lap? Scram from my head. Is this is new kind of fraud? Or is this a murderer training system of aliens that contains the ability of hypnotism?”

“No, I am the chaos that whispers from nothingness, the nightmare of all living beings in the Southern Ten Stars, the successor of the unparalleled God and… your elder sister.”

“…I only have a younger sister, I don’t have an elder sister!”

“No, you have one. I am an illegitimate daughter. It’s just that your dad didn’t inform you.”

- Description from Novelupdates

It seems that my previous synopsis was not very clear, so here is the clarification:An ordinary man dies and has the opportunity to be reincarnated, but after making a mistake in front of the goddess or basically desecrating her in his thoughts, he is punished by being reborn as a woman.But later, he discovers a method to temporarily recover his male body (legacy of lust).However, his endless desire will be the least of his problems.This world is nothing like the fantasy he dreamed.“As for genres, there's a little bit of everything: Harem, Romance, Comedy, Yandere, Yuri, MILFs, Lolis, Elves, woman-beast, Demons, Dragons, Gigantes, Priestesses, Androids, incest, Group Action, Futa, a little bit of SM, and much more. If it captures your interest, great!!!”.Here is the original synopsis>>>>>“Wait, you turned me into a woman just because I imagined that? I didn’t know you could read minds—that’s not fair!”(He had defiled her in his imagination in five different ways, each worse than the last.)After his death, a goddess granted him reincarnation in another world. But his uncontrollable lust angered her, and as punishment, she turned him into a woman.“Stop!... Don’t make that choice,” warned an old voice.Through an encounter beyond reason, he learns the truth: this world is nothing like the fantasy he imagined. It is brutal, merciless, and those who let their guard down don’t live long. He also discovers a method to temporarily regain his male form.Now, drawn into a battle for power where even the gods take sides, he fights not only for revenge, survival, and ambition, but also to protect those he holds dear—and everything he has built. In this second life, forged by sacrifices beyond his comprehension, he will carve his own path… no matter the cost.