One year ago, the biochemical weapon [gene virus nuclear bomb] mutated by the influence of [Anti-Dragon Beam Missile] fell into the city of Lascaux, turning the prosperous western city into a hell on earth. One year later, on September 26th in the Year of Sirius At 21:15 p.m., a horrific biological weapon crisis swept the world. In just a split second, the terrifying gene virus pervading West City turned all the young and old, and those humans and dragons who are less resistant to diseases in the world. They become monsters, they are called infected people, or zombies. When those people with experience, wisdom and leadership are gone, what is left to the surviving humans and dragons is only the sudden pain, confusion and hunger , panic, and the endless future. The dragon guardian who disappeared in the west city a year ago, after experiencing a whole year of pain and tribulation, miraculously returned to his companions on the night before the disaster. With a year of rich combat experience, how will he lead his team to survive in the last days? How will he face the imminent biochemical storm?