In a wireless game called "Lou", Lou Ziyu is the leader in the game rankings. Although it is said to be a game on the surface, in fact people can only enter and not exit. There are ten floors in the building, which are divided into different levels. Each level corresponds to the different difficulty of the ten floors.
Because of the system's negligence, Lou Ziyu entered the lowest-level "Lou Examination" and accidentally met a group of unusual friends. It is precisely because of this that the secrets hidden in the building gradually surfaced. The truth hidden behind it involves countless shadows...
Following the clues step by step, Lou Ziyu recovered the lost memory, and he discovered Lou himself.
Concept: black and white