[The hottest Xuanhuan work of 2017, topping both popularity and recommendation charts overseas] Zhang Xuan, after transmigrating to a different world, becomes a glorious teacher with a mysterious library in his mind. Anything he sees, whether it's a person or an object, automatically forms a book, recording various flaws of the subject, making him incredibly powerful! Teaching students, taking on apprentices, and imparting knowledge to cultivate the strongest beings in the world. “Emperor Blazing Sun, can you please pay attention to your image, Your Majesty?” “And you, Chaos Demon Lord, can you please eat less leek? Do you want to suffocate me?” This is a story of the transmission of the teacher's path, nurturing and guiding the world's strongest beings. The author has completed works such as 'King of Fighters in a Different World', 'Yashin庵', and 'Endless Dantian', ensuring quality and worth diving into!