MTL - Rival In Love Says He Must Marry Me - Chapter 11 you can leave

The contract says she can’t share his bed, but nothing stops him from getting into hers…Rain Clayton’s life takes an unexpected turn when she discovers she’s suddenly married to a billionaire named Alexander Lancaster, a powerful and dangerously captivating man who wants their marriage over before it even begins...Raised by a family that never cared for her and desperate to avoid a twisted arranged marriage, Rain seizes this unexpected twist of fate. Her new husband might be a cold-hearted billionaire, but he's her only escape. Yet Alexander demands a swift divorce.Refusing to lose her one chance at freedom, Rain strikes a risky bargain to keep their marriage alive, even if it means playing by Alexander’s rules. She just has to convince him to want her around… FOREVER.Weeks into their unexpected arrangement, Rain begins to see through Alexander’s icy exterior. But one night, she’s taken by surprise.“What are you doing?” Rain burst out, eyes wide as Alexander casually slid into her bed.“Performing husbandly duties,” he smirked.“You can’t stay here! It’s against the contract!”“I’m not breaking it,” Alexander said with a shrug. “The contract specifies that you’ll fulfill all wifely duties, excluding sharing my bed. It doesn’t say anything about me not performing husbandly duties, including sharing your bed.”The situation had shifted, and it seemed like she was no longer the only one in control...[Warning: r18+/strong mature & sexual content]

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

Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.

She is the legendary queen of mercenaries whose name daunts even the big shots in society. With an ancient jade pendant in her hand, she is great at almost everything, be it seeking the truth or the art of healing.