Heng Sao Tian Ya

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. 
"Monarch 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 Monarch 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!
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Millman97

Library of Heaven's Path

StarveCleric

Daoist6fubtiW

"Since I was able to save you from their hands, that only goes to show that I have my own means to stay alive. Thus, there is really no need for you to worry. In the worst-case scenario, I will just flee from them!" Zhang Xuan said with a kind smile.

"I know that you don't fear death, but that doesn't mean that you should throw away your lives like that. At the very least, you must make your lives count! I will go ahead first, and if I fail, you will have to serve as the final line of defense until help arrives. Otherwise, if those Otherworldly Demons charge out of the Subterranean Gallery, who knows how many lives will be lost?"

Indeed. Even if they didn't fear death, their deaths shouldn't be meaningless.

They had to make it count every single bit it was worth.

Breakthrough, Nascent Saint!