Bofuri (The Strongest Shield Of Tensura) - Chapter Eighty Six

On that fateful day, a voice in the sky told everyone on Earth that the world they called home has just been part of some sort of simulation.

Upon traversing through time, Divine Doctor Qi Yu became a foolish Princess, the kind doomed to be entombed alongside her husband. Fortunately, her medical skills were exceptional. With a unique secret technique, she fished a certain Prince out of his coffin and performed a spectacle of raising the “dead.”Everyone said that after dying once, the Qi Family's useless Second Miss seemed to have transformed into someone else. Not only did she punch pure lotuses and kick duplicitous teas, but she also possessed the Resurrection Technique and mastered all sorts of martial arts, turning the entire capital city upside down.All the civil and military officials of the court begged the Prince to divorce his wife, yet the Prince, with an expressionless face, retorted, “The one spoiled by this Prince, if you can't stand it, just suck it up.”

Coming from the modern era, she was sent to a strange world. The body she possessed previously belonged to a young woman whose family was thrown away by their clan. However with the “Dan Fu Zong”, the inheritance from her old world, she steps on the path of cultivation, hoping to one day become an immortal.

- Description from Novelupdates

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates