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

Guild Leader Liao was initially certain that Zhang Xuan's medical skills would be way beneath his, but at this moment, he realized that he was nothing more than a firefly standing before the radiant sun.

Their skills were not even in the same league!

"Does this mean that I have earned the right to use the Great Displacement Teleportation Formation now?" Zhang Xuan asked.

"Of course! There are still some procedures that must be cleared; I'll have to report this matter upward first. However, you should be able to receive your token by this afternoon at the latest," Guild Leader Liao said.

Even though Zhang Xuan had already met the criteria, there was still a need to report this matter to the other Skies and have a token forged specifically for him before he could use the Great Displacement Teleportation Formation.

Deducing a Sword Art