Alien Invasion, Only I Can Save the World by Writing a Book

Gu Jianxing traveled through Blue Star, but found that there was something different about this city. Everyone's mobile phone is forced to bind an APP: Tiandao Bookstore! Gu Jianxing, who had just traveled through time, found that he was bound to become the author of Tiandao Bookstore. It also reminds that in one month, alien monsters will invade the world. But within one month, all people can read books and obtain exercises through Tiandao Bookstore. However, the bookstore stipulates that the background of the novel needs to be written step by step. First of all, start with low martial arts! Looking at his first-level account and the books in the bookstore, Gu Jianxing fell into deep thought... The demons are about to invade soon. Can you write that the low martial arts and Taizu Changquan are invincible? Therefore, in the low martial arts era, Gu Jianxing's The Condor Trilogy, Tianlong, and Swordsman directly reached the top of the list! He even took the lead in entering the next stage and wrote the trilogy "The Best in the World" and "The Wind and Cloud". When the era of cultivation began, a mere mortal brought the entire Blue Star into an era of people moving mountains and reclaiming seas!