MTL - One Piece: Wudang Baiye, Deputy Captain of the Straw Hats - Chapter 18

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

Gu Fei, a rookie who has not survived three episodes in the apocalypse, traveled to ancient times with space and became a girl in the Hou Mansion.

As soon as I arrived, my house was ransacked and sold.

​​It was finally bought back by her family. After three years of severe drought in her hometown, there was no harvest. Gu Fei and her family fled the north.

Along the way, countless people died of hunger. Gu Fei: Don’t be afraid, there is food in our space.

Bandits and refugees were rampant on the way forward. Gu Fei: Don’t be afraid, we have weapons in our space.

After all the money was spent, Gu Fei led his family to farm and open an inn to make a fortune, and by the way, he gained a little overlord’s crown prince.

The innocent prince: My wife can always conjure up many strange things. My wife must be a little fairy.

- Description from novelbuddy

Life is unpredictable. Her husband loved her stepsister, deposed her as Empress and even forced her son to death. In that Cold Palace, she was forced to drink poisonous wine. So in the next lifetime, she made a promise to never do good deeds and help others, to never step into the palace and to never become the Empress!