Game of Thrones: I Am The Heir For A Day - Chapter 13: Plausible Answers

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

In the last life, Lan Muyu ran away from home for love, but accidentally bumped into her object – the adultery of the popular actress Fu Yao. In order to keep her reputation, Fu Yao and Xiao San teamed up to drug her, and she jumped down from the thirty-ninth floor so that she would not be humiliated.
Her career was ruined, and all the betrayals left her to recognize her, but after her death, her fiancee Li Ruonan tried her best to avenge her, and she was implicated in her death.​​
Once again, facing the cheating scumbag girl, Lan Muyu, who had learned from her previous life, smiled coldly. She quietly took a video and turned around and ran away. It was uncertain who would win this time.
Looking at the pouring rain, she knocked on the door of the luxury car that had just stopped, “Miss, look at me… hey!”
Before she could finish speaking, she was stuffed into the car – what kind of person was she, Li Ruonan, the fiancée she abandoned for love!
Until Fu Yao and Xiaosan’s resources were cut off, and the company’s investment became a bubble, only to find that Lan Muyu was already in the high starlight, holding the hand of the chaebol heir and smiling in all manners.
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Li Ruonan (attack) VS Lan Muyu (shou) cover is Shou!
Note: Gongshou 1v1 Shuangjie, the Lord of the Year has no children

Content tags: rebirth sweet text cool text revenge abuse scum
Search keywords: Protagonist: Lan Muyu; Li Ruonan ┃ Supporting role: Please pre-receive “I became the villain’s favorite after wearing the book” ┃ Others: rebirth; attack change; scumbag
One sentence introduction: However, he was taken home by his fiancée
Purpose: face danger, live optimistically

- 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.