No, My Textbook Has Actually Mutated

As soon as he opened his eyes, Zhang Jiuan found that he was back in the classroom where he was a student. He thought he was reborn, but the next second he discovered that his textbooks had mutated. Language: The language of ancient times can communicate with the spiritual power of heaven and earth, and contains various artistic conception techniques. Mathematics: The ultimate method to improve a warrior's power of perception. English: Yaozu, the common language of barbarians. Physical Chemistry: Elective courses such as qi refining and alchemy, and even biology courses have become tips on how to control beasts! As for history and geography, we can even discover the changes and secret realms of the major sects in ancient times. Looking at his mutated textbooks, Zhang Jiuan suddenly discovered that the world seemed not as simple as he imagined... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.