Who would have thought that, overnight, the world would be covered in corrosive gray dust, human civilization would collapse, cities would be reduced to ruins, and monsters known as "weird" would be rampant. Survivors linger in moving vehicles and temporary camps, awakening naturally or relying on a substance called "origin blood" to unlock gene locks and gain superpowers.
The protagonist Qin Fan accidentally acquires the Wangwang System (also known as the Dog System), and forms a team with the heroine Chen Xi and others to kill and upgrade all the way. The process is thrilling and narrow-circuit, and finally discovers the reason for the "Gray Silence Era" that is unbelievable!
