If You Are Asked to Take over the Class, Will You Teach the Students the Seventy-Two Changes?

Reborn as Gao Wu and becoming a university librarian, Su Zian accidentally discovered that the back door of the library can lead to another world! However, he is of average talent and has been in the Immortal Sect of another world for three years, but he is still in the period of refining his Qi. On this day, the teacher happened to be out of town, and the school asked him to teach instead. Su Zian looked at the superior students with disdain. "I have been working as a library administrator for many years, and I don't know the Heavenly Snake Body Refining Technique, but I have read an article in the library called the Golden Pill Qi Refining Technique." "Refining essence to transform qi, refining qi to transform into spirit, refining spirit to return to void, returning void to combine with dao. This is much better than the martial arts you practice!" After the students heard it, they immediately practiced it. And inside Su Zian's body, there are more mana powers! Student cultivation = self-cultivation? Su Zian licked his face and begged the ancestor of the Immortal Sect to give him a new technique. "Seventy-two transformations of Earthly Evil!" "Great Heavenly Immortal Technique!" What? The Immortal Sect in another world turned out to be Fangcun Mountain, and I became Sun Wukong's senior brother? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.