I Just Want to Copy an Assignment, How Can I Become the Savior?

There is a portal in Lin Xian's wardrobe that can travel to the library a thousand years in the future. The library is empty, but there are a huge number of books of all kinds. So... A book copying across time and space began: "This research is so advanced! Lin Xian's graduation thesis can be directly evaluated as an academician!" "Boss Lin Xian has conquered cancer! He has already won the Nobel Prize!" "The world's number one all-around talent! The songs written by Lin Xian dominate all music charts!" "Our country's science and technology is far ahead of other countries on the planet! Lin Xian, the president of the Dragon Academy of Sciences, is well-deserved!" ………… With a large number of books in the library, Lin Xian became an all-powerful hero of the Dragon Kingdom in reality. Until one day. A girl who calls herself a librarian appears: "Want to take a look outside the library?" The library door opens for the first time. When Lin Xian saw what the world would really look like a thousand years from now. He finally understood the significance of the existence of this library... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.