MTL - Emperor of All Games: I Have a Tyrant Simulator - Chapter 356 crisis

Arakawa Kouki is reincarnated to a Japan with a different history than the Japan he knows with the memories of his previous life still intact. Kouki was discouraged, “Aren’t reincarnation stories supposed to be at some fantasy world filled with swords, magic and elves?!”

Princess Anastasia of Orsenia is regarded as the kingdom’s treasure. However, she carries a heavy secret— she is diagnosed with an incurable illness. She is fated to die before she turns 18.

For years, her parents desperately searched for a cure but to no avail. That is, until a mysterious letter arrives, claiming that the only way Anastasia can escape her cruel fate is to send her to a monster:

King Caspain, the ruler of Sorvando, a vampire kingdom.

The letter prophesizes that Anastasia will live, only if she makes that bloodthirsty King fall in love with her. However, Anastasia knows it’s nearly an impossible task. Sorvando is filled with dangers. And she is only but a weak human.

Yet, her will to live won over her fear. No matter how cruel the king may be, Anastasia will still try to win his heart.

Now, if only she can keep her own heart from falling for him as well.

***

[Excerpt]

“Cas-pian…”

And he looked back to see that she was biting her lower lip as though she greatly enjoyed that kiss.

He smirked again and whispered in his deeply seductive voice, “I like my name even more ever since I started hearing it from your beautiful lips. And I like it even further when you say it in that hushed tone.”

Anastasia had no idea what Caspian was hinting at yet.

So he dropped some more hints, “Wife, weren’t you asking me what the first night meant? Let me show you.”

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

She is one of the best thieves that the world has seen in the 24th century. However, not even in her wildest dreams had she imagine that she’d be reincarnated as a good-for-nothing orphaned Seventh Miss of the Vermilion Bird Family. She finds herself stuck in a family that mistreats her, as well as an unfamiliar place with no support system.