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?