Maou Gakuin No Futekigousha - Chapter 234.1

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

[Sweet Baby + Parenting + Doting In-laws + Light-hearted + Redemption]Xu Wan became a widow right after her marriage, initially hoping to enjoy a carefree life as a Marquis’s wife.Unexpectedly, on her very first day at the mansion, that notorious troublemaker of a stepson, infamous throughout the capital, tried to intimidate her twice.Xu Wan grabbed a knife and rushed out, instantly becoming the talk of the entire capital!Though she thought her dreams of being the Marquis’s wife were over, her in-laws surprisingly retaliated by entrusting the little devil to her care for reformation.Xu Wan: “???”Little Devil: “???”At first, no one believed it would work…But later, the maids would exclaim in amazement every day:“The young master who never studied is actually going to the study room!”“The young master is even bringing foot-washing water for the old Marquis!”“The young master actually saved all the children in the slums!”…The Marquis’s mansion was shocked, the entire capital was shocked, even His Majesty in the palace was shocked.Word spread that the Marquis’s wife had a special talent for reforming troublesome children. Soon, court officials began sending their rebellious sons to the mansion, and the mansion’s “elite class” kept growing!Three years later.The Minister of Rites, responsible for the imperial examinations, wailed to the heavens: “It’s impossible to choose! They’re all top candidates!”

Xu Ping'an was overjoyed to marry, but what welcomed him was a deception.Eight years of devotion, eight years of infatuation, only to be repaid by the one he loved plucking his spine and devouring his bloodline.“You take my spine, I'll turn my Thunder Sword into bone, defy the heavens to change my fate, and awaken the memories of the Immortal Emperor from a past life.”In this life, I will make all those who betrayed me descend into Hell!