In 2024, a sudden gray fog sweeps across the world. Every once in a while, the gray fog will randomly cover an area, pulling humans in the area into a horror game world called "The Resentful Girl Tower". The selected people must clear layers of levels before they can return to reality, otherwise they will be trapped in it forever. Now. Ji Zhong's body will gradually turn gray and disappear... In order to explore the cause of the Resentful Girl Building and find a way to make it disappear, China dispatched an advance team composed of elite special forces from various fields into the Resentful Girl Building. However, this operation also allowed them to reveal the "unknown" "truth"...