In the modern city of Yunzhou, a series of bizarre "imaginary" events happened one after another. Some people saw scenes that were not part of reality, some people acquired suspected superpowers inexplicably, and some people's written words became reality in their lives... Five people with very different personalities, backgrounds, and life trajectories were connected by different events in their respective life maps. They have successively become key figures in investigating, influencing, or stirring up "brain hole" events. In the constant questioning and struggle against the boundaries of reality, everyone is faced with a choice: to embrace fantasy, or to stick to reason? As chaos spreads across the city, reality and fiction gradually blur, and their fates become intertwined - and all story lines ultimately point to the ultimate secret about the city, about oneself, and about the origin of the "brain hole event".
