In 2120, a large-scale collective coma occurred around the world. A total of 23.81 Million people worldwide fell into coma at the same time. According to preliminary diagnosis, these people were all asleep. As soon as this news was released, the whole world was in an uproar, and some people proposed the concept of "vegetative state". In the next month of the same year, another 38.1 Million people fell into coma at the same time, and 9.8 Million people lost vital signs one by one. Panic spread across the world. As time went by, more and more people lost their lives in coma. People's emotions were high. People in many countries around the world held demonstrations at the same time...
In October 2121, various countries observed large "shadows" on earth satellites that tended to spread. In December of the same year, the Chinese government launched the "Ink Shadow" project, and in January of the following year it launched the "Search for the Pearl" project.
In September 2122, the people involved in the "Mo Shadow" project and the "Searching for the Pearl" project disappeared.
In 2124, the "shadow" covered 1/4 of the earth's area. All countries in the world, without exception, had "shadows" of different sizes, but fortunately they no longer spread.
