I Became the Wife of the Monstrous Crown Prince - Chapter 104

Iris Morris is by no means looking for any more drama in her life ( she has loads of it thanks to her mom). However, when Lucas Andrews pops up and ruins her interview, the drama she has been running away from unfolds in all the “wrong” ways, like him suddenly filling her small circle of influence. . .and her mind!For Lucas Andrews, nothing is as important to him as getting the Adder magazine to be number one on the bestsellers list worldwide. So when Iris comes to support the promise he made to his mother out of her sheer love for editing, he can't help but fall for hard for her, especially when a fake dating deal to ward off his possessive “fan girl” comes into play.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

This is a tale that distorts the scenario of an otome game.An orphan girl named Alicia is attacked by a woman trying to steal her body to become the “heroine”. From the fragmentary knowledge she acquires, Alicia learns that this world is the stage of an “otome game” in a “world of sword and magic”.Having learned the truth from the knowledge she obtained, the immature Alicia dismisses the otome game as “nonsense” and runs away from the orphanage to escape the fate of the “heroine”.A villainess aims to take her life. A fake heroine appears. Alicia trains herself using the fragmentary knowledge she has gained in order to survive, growing into the “Strongest Assassin” that is feared by both the Thieves’ Guild and the Assassins’ Guild.