Superstar From Age 0 - Chapter 540:

“My fiance has a change of heart. Your fiance isn’t in love with you. Why don’t we get together and get married instead?” Natalia spoke without a hint of irony to the mysterious man—the embodiment of elegance as the man stood at the entrance to the cathedral under an umbrella on a rainless, cloudy day.

After defying her family’s wishes to marry Vasili and agreeing to retreat from her budding modeling career, Natalia’s life turned upside down when her fiance abandoned her for another rising model from the same company on their wedding day. Amidst Natalia’s contempt, Alex Bruch came into the picture. Natalia thought her marriage with Alex, the man with blood-red lips and violet eyes, would be as mundane as asking each other what to have for breakfast...

Above all else, she would have her revenge.

Being able to see into people's past has no real appeal for the teenager this story is about, letting him use it only as amusement and to show off when he was drunk.Never watch into someone's past beyond a superficial level.Never try to find out more than you should.NEVER. EVER. LOOK. INTO. THE. FUTURE.But everything changed the moment he was forced to look into the future, was forced to investigate a murder, and was forced to make the acquaintance of the victim's twin brother('s fists).The more time passed, the more it appeared that the primary reason for this murder wasn't a local problem, but a global one.This single, marred corpse was the beginning of a threat that would shake the world.(MC looses a screw when he enters the prison)BL, first-person view; MC is shuo (perhaps even a reversible couple); love interest falls in love first; both MC and ML are straight, mutual bending, Enemies to Lovers

After waking up, Han Zhao traveled to a world where kingdoms were fighting for hegemony and demons were rampant.

The family of magic soldiers is high above, and the rich family of spirit beasts overlooks all living beings.

The inheritance fault of the martial arts system is gradually declining.

Han Zhao’s qualifications are mediocre, but he has a reminder simulator.

After the krypton gold simulation, choose one of [entry], [attribute points], and [life experience].

[You have practiced martial arts for eight years, barely getting started. Twenty-five years old, married and had children. Fifty years old, died of illness. 】

[You have practiced martial arts for a year, and you have successfully started. At the age of twenty-two, you were seriously injured and died of poisoning during a gang turf war. 】

 …

[Life Simulation]: Basic entry, simulate a future life.

[Swords and Swords]: White entry, three times the qualifications of swordsmanship and swordsmanship.

[Basic Master]: Green entry, the speed of basic martial arts practice is doubled, and the probability of breaking through the upper limit is greatly increased.

[Late Blooming Talent]: Blue entry, aptitude improves with age.

[Body training maniac]: Purple entry, practicing body training skills is making rapid progress.

[Alchemy master]: Orange entry, alchemy qualification increased a hundred times.

[Peerless Fairy]: The red entry, looks more and more beautiful, and has a charming effect on the opposite sex.

 …

[The 72nd floor of the health regimen; special effects: physical fitness (hidden special effects: immortality, true sun, nirvana holy body, five-color light…)]

As long as there are enough entries, the power is mediocre, and the simple and easy-to-learn health-preserving skills can also be practiced into peerless magic skills.

- Description from novelbuddy

Jiang Xiaoman was bound to a system when she was three years old. The system told her that she was the lost daughter of a wealthy family assigned to play the cannon fodder in this script. The fake daughter that her parents adopted was the heroine of the story. 

Jiang Xiaoman blinked her eyes and asked, “What is a cannon fodder?” 　 

System: “You all live in a book, and everyone is assigned their role. From now on, you should keep on blackening and be a bad child. Do you see that little boy? He has a bigger role than you, in the future, he will become the big bad villain. Why don’t you bully him now, and show him up real good!” 

The naïve Jiang Xiaoman picked a handful of colorful flowers and stuffed them into his hands. “I’m showing you something really good!” 

System: “…”

Darling, you got it all wrong! Not showing him something good that way!

The little boy: “I don’t need friends, I don’t need company. I’m just a burden that no one wants. It’s my destiny to be abandoned.” 

Jiang Xiaoman: “That’s wrong. Everyone’s existences have meaning. System said you are especially important, even more important than me. You’ll be a really really useful person in the future!” 

System: “…??”

Did it say that?? 

Later on, the system stopped giving Jiang Xiaoman any tasks. Jiang Xiaoman was very sorry and said, “Mr. System, why won’t you play with me anymore?” 

System: “… just try to grow up first and learn to understand every word! You’re killing me!!” 

Jiang Xiaoman worked hard to blacken (not really) under the system’s supervision until she was reunited with her wealthy parents. She scratched her little head and asked, “Mr. System, what about the task? Didn’t you say that we should fight over the family’s wealth?” 

System: “What kind of wealth do you still want to fight over? You already have more money than your wealthy parents!”