In the third year of traveling through the apocalyptic wasteland, I, {Lin Feng}, was framed by a hypocritical best friend, and when I was on the verge of death, I awakened [Xia Dao Mission System]! The system issues tasks to kill villains, rescue survivors, and build bases. Every time you complete a chivalrous act, you will receive god-level materials, science fiction black technology, and superhuman physique! Faced with the unscrupulous businessmen who drive up prices, the unscrupulous media who spread rumors, and the insidious opponents who are jealous of my rise, I use chivalry as a blade and the system as a shield to kill evil and protect good along the way! My beloved sacrificed to protect me, making me understand that a great hero should guard a pure land! From being alone to being in charge of a survival base for millions of people, from being a refugee in the wasteland to being the savior of the doomsday, watch me conquer the wasteland with system tasks, and illuminate the doomsday with my chivalrous heart!