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

"Ancient Sage?" Zhang Xuan narrowed his eyes in shock, not daring to believe what he had heard. "Didn't you say that it's impossible for anyone to make a breakthrough beyond Ancient Sage anymore?"

Previously, Yang shi had stated that it was no longer possible for anyone to make a breakthrough to Ancient Sage. Even he himself had reached a bottleneck in his cultivation, and the reason he had chosen to roam the world was to search for inspiration that could possibly allow him to make a breakthrough. Since that was the case, how could that Otherworldly Demonic Emperor be so powerful?

"When I said that he has reached Ancient Sage, I fear that's only a conservative estimate on my part." Yang shi shook his head worriedly. "There's a good chance that his cultivation is far higher than that!"

The Secrets of the Master Teacher Continent