My Foolish Husband Turned Out to Have a Hidden Identity Too - Chapter 13 - The Chief Alchemy Master of the Qingyun Sect

[The Demon King is Dead], a story in which the Demon King got immediately killed in the Prologue. I became the ‘Demon Prince’ of said novel.

…Help me.

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 a descendant of Shennong with unparalleled medical skills and possesses a unique treasure. He is a handsome warlord who mysteriously goes blind and is sly and cunning. Crossing into another world, she becomes a six-year-old little waste. Through defying the heavens with summons and forbidden magic, she rises up in one fell swoop, showing a dazzling brilliance, looking down upon the powerful.When arrogant meets cunning and genius clashes with monstrosity, at that moment, the world trembles in awe!