Black Nest Technology, a giant enterprise headed by Xiao Sin, has almost conquered the world. It is rumored that their proud humanoid weapon "Guardian" has the power to destroy the world. However, not everyone accepts Xiao Sin's rule. The protagonist, Bai Jiu, successfully entered the Black Nest Technology with the help of his fellow rebels, trying to obtain a "detector" and recover everyone's life experience and family. And what purpose will the protector INK, who was sent to destroy the invaders, come here?

In order to go back to the past, Guan Chao tries hard to find the "burning stone" that activates the time gun, but accidentally falls into the Memory Management Bureau. Only by conquering the BUG people in the memory layer can he return to reality. With the help of administrators such as Fangtang and Baizhong, can Guan Chao successfully complete the task? What kind of challenges are awaiting Guan Chao in each memory layer...

During the An Lushan Rebellion of the Tang Dynasty, monsters are everywhere and the people were destitute in the Central Plains. Li Haobai started from the Bashu and wanted to go to the front line to make a meritorious deed. On the way he was swallowed by the monster. By coincidence, Li Haobai and the guardian of the dragon’s veins merged with each other to obtain the power of the black dragon. And he has since been involved in the struggle of various forces.