The Principle of a Philosopher by Eternal Fool 'Asley' - Chapter 401: The Strengths of Humanity and the Devilkin

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

I died a heroic, powerful, male Archmage… so why did I wake up as a sixteen-year-old girl?!Theo’s last memory is of a glorious, failed last stand. His next is a beeping hospital machine—and a terrifyingly handsome guy he’s pretty sure is a demon calling him “princess.”Now, he’s Thea Montrose, youngest daughter of a powerful family in a world run on magi-tech and corporate espionage. Between navigating floating cars, enduring his new mom’s hugs, and figuring out the horrifyingly complex mechanics of using the bathroom, Theo has his hands full.But his new family is hiding secrets, and their rivals play for keeps. Good thing this spoiled heiress’s body now holds the soul of an ancient wizard. They wanted the real Thea back? They’re about to get way more than they bargained for.He failed to save his old world from an apocalypse—now he just might save this one (and finally figure out how this bra works).

Euri was quite passionate about wanting to become a perfect corporate slave.But after being forced to explore the sentient game infesting his miniscreen, Euri realized that he had stumbled upon an opportunity anyone on the planet would kill for. While the entire human civilization on Planet Nen struggled to deal with the superior lifeforms plaguing the extraterrestrial planes beyond their world, Euri could compete with them all for power by just playing this game!A side-gig that didn’t conflict with his dream of climbing the corporate ladder—how generous can fortune be to bequeath this opportunity to him.Transcending the spatial laws, transcending human notion of cultivation, transcending the rules of Cosmic Development Bureau, Euri began a series of crazy experiments that could perhaps destroy the millennia-spanning schemes of the most advanced civilizations controlling the macrocosm.When interrogated about this fiasco, Euri answered the way a perfect corporate slave should. “Full credit for this goes to my boss, who provided me with the opportunity...”

One god, one faith, one world, one mage… I am the only mage in the world.

- Description from Ptwxz (translated)