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

Zhang Hongtian gave it a try, but he realized that the cloth-like barrier before him was frighteningly resilient. He immediately realized that the prowess of Ancient Sage Yan Qing was far above his, so with a cold harrumph, he turned around and said, "Since Ancient Sage Yan Qing has spoken up, I'll spare you for the time being!"

He flicked his wrist to return his sword back to his waist before regrouping with those from the Master Teacher Pavilion, standing quietly on the spot. It was as if he was completely unaffected by the conflict that had just occurred.

At the same time, it seemed as if the White Overlord knew that it was not a match for Zhang Hongtian or Ancient Sage Yan Qing, so it whipped its tail back and quietly returned to its group, not daring to utter a word of complaint.

I Have Many Cruxes