In the era of natural disasters, the world has fallen into apocalyptic chaos. The protagonist Cao Xuan accidentally activated the "Humanity Experiment System", but this system is a complete troll - the tasks it issues are often contrary to morality:
"Mission: Make the daughter of Lao Wang next door fall in love with you, and then sell her to the underground forces. Reward: Design drawing of the Doomsday Fortress."
"Mission: snatch the last food from the orphanage and watch them kill each other for survival. Reward: Potion for Awakening of Superpowers."
Cao Xuan was not led by the system. On the surface, he cooperates, but in fact, he secretly completes the task and gets the reward, while secretly making plans to protect the innocent, and even cleverly uses the system rules to double the reward and invalidate the punishment.
However, he soon discovered that this system did not come randomly. Behind it is a secret organization called "Observers", which is using this doomsday to conduct a grand human experiment. And Cao Xuan is the "Experimental Subject No. 17" They selected.
When Cao Xuan began to counterattack the system and hunt down the observers, he discovered that the true purpose of this experiment was far crazier than he imagined...