My Cuckhold System - Chapter 15: Love Letters

STAFF NOTE: The author had proven ownership. RighteousEgg is the original author. I have added a pinned comment to the first chapter to show this staff note is legitimate.---Chu Xuan traversed the Mystic Azure Realm and became a demonic cultivator in the Infinite Sect. To cultivate as a demonic cultivator means to plunder the essence of the heavens and earth and seize the quintessence of all things. One has to slaughter countless beings to rise as a supreme demon lord. However, such killing was intolerable under the heavenly Dao of the human race. Consequently, the Infinite Sect was annihilated by the orthodox sects. In desperation, Chu Xuan stumbled upon a Blood Mirror, which allowed him to travel to a post-apocalyptic planet overrun with zombies! He realized that this place was a perfect sanctuary exclusively for demonic cultivators! If he dared to sacrifice a million humans, the heavenly laws would strike him with thunder and burn him to ashes. But if he sacrificed a million zombies, not only would he face no disasters, but he would also be showered with golden blossoms, enveloped in glorious light, and blessed with merits!

Aoki’s resolute face was indifferent. “If the sun doesn’t shine on me, please let me be surrounded by darkness!”
From a different perspective, look at the entire Pokemons world.

- Description from Uukanshu

They stole her work. They stole her future. And they thought she’d just walk away.Aria Solona was a prodigy—an orphan who clawed her way out of poverty and rose to become a Cloud Architect, one of the unseen hands shaping the digital backbone of modern civilization.Until the day her boss stole everything.Humiliated, betrayed, and broken, she rage-quit her job… only to be swallowed by a glowing white door that tore her out of reality.Now, in a world of monsters, dungeons, and gods, she is no longer a Cloud Architect.[Job Assigned: Dungeon Architect][Skill Granted: Assistance System (EX)]Instead of code and servers, she can now create traps, safe zones, and fortresses out of thin air. Her knowledge of design and systems, the very skills that kept the digital world alive, are now her weapons in a realm where survival means building faster, smarter, and deadlier than anything hunting her.No swords. No spells. No plot armor. Just her mind, her system, and her will to never be used again.In a world where dungeons devour the unprepared, Aria won’t just survive—She’ll architect her own legend.Additional Tags: Female Protagonist, Transmigration, Isekai, System, Creation Class, Dungeon Building, Survival, Overpowered Growth, Sarcastic MC.

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

Three days later after he became An Ziran, An Ziran’s father and his biological mother died, which meant as the eldest son he had to take over the family business.

Beside his legitimate first wife, An Ziran’s father also married 3 others women, who all wanted to take over the An family fortune but only the eldest son could be able to touch it, therefore they have to depend on An Ziran in order to live a comfortable live.

An Ziran’s father also had an older brother who is always planning to steal the An family fortune. The elder brother of An Ziran’s father and the woman he married had powerful connections. In order to save the An family fortune, An Ziran has to find a golden thigh to cling on. The butler told An Ziran that there is an engagement between the An family and an influential family. Therefore he takes his sister to that family house to make a connection.

However, during their journey, An Ziran’s younger sister overheard that the son of that family is UGLY, so as a beautiful and spoiled young lady coming from a rich household, she didn’t want to marry him and decided to run away. Without any other choice, An Ziran had to take his sister’s​ place and marry that man, who told him that he would let him go soon, but lied.

- Description from Novelupdates