How I Accidentally Married a Billionaire - Chapter 197 -

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

Igor had asked him to die for the world. She would ask him to die for her. Problem was, he didn't really like dying, not for a second time, at least.

“There is no god, only the echo of our fears, bound together in a symphony of false hope, woven to make this endless cycle of pain bearable... But I refuse to be just another note in their song. I will not be silenced to protect the gate you so desperately uphold. I don’t care for the blind masses; they are but shadows, moving without purpose. If I cannot run, I will walk. If I cannot walk, I will crawl. If I cannot crawl, I will roll. And if all that remains of me is a severed head, then I will still glare at you with the scorn of the relentless.”...In a world where Hunters fight to keep humanity safe from monstrous invasions, Timothy Walter is nothing more than an E-rank weakling, expendable, powerless, and barely surviving.That changes when a forgotten dungeon forces him into a deadly trial, awakening ancient rulers from across races.Bound to the weakest among them, he inherits a power unlike any other: “King Player.”Now, with a system that defies all logic, Timothy must carve his path, facing enemies both human and monstrous, as he ascends from the lowest depths to claim a throne none believed he could reach.

An engagement paper to lock one’s destiny. With her family facing financial difficulties, she marries into the family of the richest man in Qingzhou as his wife. Her Mother-In-Law’s doubtfulness; her husband’s childhood sweetheart; her mean elder sister-in-law; her narrow-minded younger sister-in-law… Being inferior, Sang Wan withdraws without a choice. As time passed, she ended up being lonely and died tragically.