7th Demon Prince Jilbagias' Chronicle of Demon Kingdom Toppling - Chapter 78.1 - Conversation And Atonement

[The criteria for unlocking the system have been fulfilled.][System synchronization with host commencing.][Synchronization complete. Congratulations. You have been given a chance to become the most desirable human in this world, just as you wished.]“This isn’t what I wished for.”[What seems to be the problem?] the voice asked, a hint of curiosity in her tone.“I asked to be the most desirable human, not a woman!” he exclaimed, frustrated as he cupped his newfound breasts.Sylvester Lancaster, a dedicated and kind-hearted unactractive policeman, often dismissed and treated like a doormat, snaps after discovering his newlywed wife in bed with his best friend. Consumed by rage, he goes on a violent rampage, only to realize the horrific extent of his actions when the blood cools—he has committed murder. Panicked, he attempts to flee but is struck by a car and meets his untimely death.However, death is far from the end. Sylvester awakens in a morgue, only to find himself in a bizarre alternate universe—trapped in the body of a stunning young woman named Cara Bolton.In this new world where Sylvester has transmigrated to, vampires, werewolves, witches, and other supernatural beings coexist in a fragile balance with humans, their uneasy peace marked by underlying tensions and hidden conflicts. Among the supernaturals, vampires reign supreme as the most dominant and influential. The system reveals to Sylvester that he now wields two new skills: the power to read minds and the ability to detect lies, skills inherited from Cara, the body’s former inhabitant who was a fairy.The system assigns him quests to complete, allowing him to level up and gain all remaining skills a fairy possesses. Many of these missions involves sex, manipulating and exploiting people, as well as infiltrating the vampiric council.

Kai is the hardest working warrior in his generation... and the unluckiest. In a world where most people receive magical skills, classes, or cultivation, Kai has nothing but his wits and his strength. His only choice will be to forge a new path against fate, no matter where it takes him.

Savage monsters pour endlessly from the wasteland, threatening the survival of civilization itself. They say that human strength isn't enough and only those gifted with destined powers have a chance of making a difference. Kai is hungry to fight in that war, to be someone who matters. That hunger will take him across a world stranger and more terrible than he could possibly have imagined.

Witnessing her fiance’s derailment with her own eyes, she married a “poor and poor” poor second generation.

The next day, jewelry, diamonds, haute couture clothing, luxury cars and mansions were received softly.

He is a domineering president who is cold-hearted and black-bellied in front of others, and he is also a three-good man who spoils his wife, loves his wife, and loves his wife.

 …

Rumor has it that his cleanliness allergy makes him never touch a woman, but she is a complete exception;

Rumor has it that he is an ascetic man who is so indifferent to strangers that he is extremely gentle in front of her;

Rumor has it that he is generous and neat and never cares about others. After his marriage, he overturns countless vinegar jars every day…

Her married life: sweet, sour, sweet, sweet, bitter, salty;

His married life: Chai, rice, oil, salt, sauce, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, tea.

- Description from novelbuddy

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.