Naruto: I Became Orochimaru's Apprentice - Chapter 7: The Training Never Ends

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

Modesty! Honesty! Compassion! Bravery! Justice! Sacrifice! Honor! Faith!He is a lich, yet he upholds the knightly spirit!He is a lich, yet he remains steadfast in his faith of light!“With a formidable enemy at hand, fearless and unobstructed! Daring and loyal, worthy of the Holy Spirit! Loyal and upright, willing to die unyielding! Protecting the weak, never going against heaven's principles!”Standing at the top of the world, no matter how great the storm, nothing can stop him from following the steps of the Holy Spirit! Not even the Holy Spirit!...This is a romantic legendary story of a chatty cat and a lich who dedicates his body and soul to the light!Yes, “romantic,” not deceiving you! That's just how it is!

Fifty years ago, the oxygen in the atmosphere changed, giving rise to a new form of air known as Spiritual Qi. Humans, plants, and animals alike suddenly awakened latent mutant genes and began evolving, gaining Superpowered Talents and Classes. Life took a new turn, and humanity had to adapt.Everything seemed to be going well until, fifty years later, a 16-year-old boy named Klaus awakened a terrifying Talent and Class. His awakening marked the beginning of a new era in human evolution.Unbeknownst to everyone, Klaus, who was shunned by society and dropped out of school to work for a better life for himself and his mother, was actually the last of the Nine Paragons—a being so powerful that even the heavens feared him.Watch as Klaus climbs the ladder of strength, pursuing absolute power with a single purpose: to protect and make his mother happy.

Yuan Xi had been the secretary for Gu Hanchen for five years, working tirelessly without a single day off. Not only was she overworked like a horse, but she was also slandered by Gu Hanchen's fiancee and her friend, Miss Chu, who accused Secretary Yuan of delusionally hoping to turn from a sparrow into a phoenix and become the wife of President Gu. No longer able to tolerate the treatment, Yuan Xi handed in her resignation letter. After resigning, the once overburdened secretary surprisingly turned out to be the legitimate heiress of the wealthiest family in Jiangcheng, the Chu family! Back at the Chu household, Yuan Xi discovered that the family had taken in an adopted daughter, Chu Yan, who had been standing in for her. The false heiress was bright and unrestrained, rightfully considered the unrivaled young mistress of Jiangcheng. Even after the return of the true heiress, Chu Yan remained the celebrated young mistress while Yuan Xi was invariably seen as a mere shadow when compared to Chu Yan's splendid life. Yuan Xi's husband did not even own a house in the center of Jiangcheng. In contrast, the impostor Chu Yan was set to marry into one of Jiangcheng's top four wealthy families, the Bo family. Everyone in Jiangcheng ridiculed Yuan Xi for not having a life as fortunate as the false heiress, nor a discerning eye. That was until the day when Mi Chen was listed on the stock market, and Yuan Xi swiftly rose above her own father to become the new wealthiest person in Jiangcheng. On the day Yuan Xi's child was born, the established noble Huo family from A City announced with great fanfare the joy of welcoming a new grandson... Yuan Xi had always thought that her marriage to Huo Shiyen was merely a shotgun wedding, and that Huo Shiyen had someone else he considered his childhood sweetheart and sweetheart under the moonlight. Only later did she realize that she was, in fact, his cherished childhood love.