Naruto: The Otherworldly Cultivator - Chapter 1 - 0: Another Chance

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

mc gets transmigrated to Fallout New Vegas with the merchant system. let the questionable adventure begin.

The beauty and the taboo existing together.Unattainable and unacceptable.An existence only to be admired from afar.A hero of legends but a also a girl of tragedy.Shining like a star in the sky, all alone, forever…-But that’s too sad isn’t it?Our MC, an ordinary middle aged man, is an author that wrote books and after pouring 2 years of hard work in a book, his hardwork finally bore fruit as his book got the second prize in the regional awards.A fruit that he couldn't eat.Why?Because he along with hard work, he also poured his piss somewhere he shouldn't and died.Exactly how?Read the prologue, and you will find out~But of course, that's only the start, as the next time he woke up...He was in another world.

An upsurge of emotion, infinite fantasy, the wind waving Melaleuca, undefeated young blood! After the rebirth of Nie Yun lucky to have the ability to change the number of dantian law formula, others with a dantian practice, you use ten, one hundred!

- Description from Uukanshu