In the catastrophic city "Asheyuan" in the near future, the "Eternal Day Plan" that has no night all year round has led to the collapse of society. The protagonist Lin Xingchu is a former policeman and now a member of an underground resistance organization, investigating a mass hysteria called "dark syndrome". As the investigation deepens, he discovers that the human experiments of the "Dome Council" are hidden behind this, and every time he saves someone, he creates more sacrifices. The story revolves around the conflict between personal guilt and collective redemption, absolute light and absolute darkness, and ultimately leaves endless suspense in the open ending where darkness devours Aurora.
