Billionaire's Secret Twins and Rebellious Wife - Chapter 10 - 0:

“The Demon Lords are bringers of destruction, and among them, I am the strongest.”The Demon King has fallen, slain by the Hero in a battle that shook the heavens.After this, humanity knew a long era of peace and prosperity, with the hero now at the top of the world.Fifty years after the battle, the demon race is resurfacing, but now with the throne empty, they must fight for the emergence of the new Demon King. Meanwhile, the humans are preparing for the rise of the next hero who will oppose their archenemies.Born as a mere stable boy in a lower-class noble household, Bel has lived his life tending to the noble gardens, pruning roses for banquets he would never attend. He is nothing more than a lowly servant in a world ruled by noble bloodlines and magic.However, his fate changes when a demon attack devastates the household. As flames consume the estate, Bel is about to be executed in front of his master when their leader, a great demon, recognizes him as a member of a powerful species of monsters that had disappeared before the ascent of the previous Demon King.She calls him by his true name, awakening his true blood.The demon, intrigued by this discovery, decides to spare him out of curiosity and pity. Having learned about Bel’s true nature, his master, rather than executing him, chooses instead to bring him into the heart of his household, seeing in him an opportunity to elevate his family’s standing by binding a powerful being to his service.But power cannot be shackled forever, and among them, the one in Bel's blood is the most dangerous.

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

As this world no longer needs a king, the king and his squire will have to move to the nextI will be posting this story also on wattpad and royalroad

I'll take care of it. The uncle of her husband on their wedding night whispered viciously in her ear. In front of a frightening Steel Blooded Business Demon, he was the one who was crazy for favoring his wife.

He had begged her to pave the way for her so that she could do whatever she wanted. If not, he would pamper her to the heavens. Just because he glanced at the clothes, he directly monopolized the entire shopping mall under her name. He said, As long as you want it, I want it!