Gaowu Gaowu in the Doomsday: in an Era of Overflowing Systems, I Am Down to Earth

Han Zai travels through a post-apocalyptic world with the rise of martial arts, thinking that he is destined to be the protagonist, waiting for the arrival of the system. However, he discovered that everyone in this world has a system, and some people even have more than one system. This is not the most important thing, because as a time traveler, Han Zai does not have a system. Just when he was about to feel lost and distressed, a door appeared in his mind. When his consciousness came out of the door, Han Zai said, "In an era of overflowing systems, I am down to earth!"