Rebirth of a Billionaire Heir - Chapter 10 - : Lines in the Sand

Transmigrated into a novel after her death, Su Jin has an engagement with Lu Xi, the legendary and unrivaled male protagonist, that was arranged between their families. After the revelation of her identity as the adopted daughter swapped at birth, she had no right to the engagement; that belonged to her sister, the female protagonist. In fear of interfering with the novel’s ending, she avoids him… But why is he ignoring the female protagonist and chasing her instead!

The Perfect Fiancé Code:

1. Support his fiancée

2. Unconditionally support his fiancée

3. Protect his fiancée unconditionally regardless of who or whom is present

Lu Xi felt that he should be able to accomplish this.

Su Jin: QAQ, please don’t do this…. I’m supposed to be the cannon fodder sultry ex-fiancée that you were going to dispose of!

Lu Xi: I have always been waiting for the moment that the 22-year-old Su Jin, you, would finally open her eyes.

- Description from Novelupdates

I was reincarnated into the world of Academy City.Since things turned out this way, I decided to aim for a decent job and live a happy life.As long as I catch the villains who will become the Great Villain, there shouldn’t be any problems.“Greetings. I am Ahn Woo-jin, a second-year student and the 45th Disciplinary Committee Leader this year.”And so, I became the Disciplinary Committee Leader, leading the top-ranked enforcement squad.

When my whole class got summoned to another world, I was the only one to encounter a divine being on my way over.And when everyone started getting Systems that were to define their fates?I've got an FFF-Rank Failure System.And to make matters even worse, it bugged out as it attempted to launch, teleporting me to the centermost point of the world, right where the strongests of the monsters resided.Right into the lap of a Tyrant's Puma!But what's with that sparkling glinter in the distance, that comes bearing down the weight of our shared destiny?And who's looking down on a chessboard, smiling as the pieces are starting to move.The divine intervenes. The ancient prophercies finds fulfillment.The purpose long gone awakens as the universe's destiny weaves itself into the fate of the two entangled souls.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates