At the beginning of the 21st century, in the shadow of the Trisolaran invasion, humans launched a frozen brain into space to contact the Trisolarans. Two hundred years later, the brain named Yun Tianming was finally captured by the Trisolarans. The resurrected Yun Tianming gradually developed an outstanding mind in the dream struggle with the Trisolarans, decisively affecting the course of the war between humans and the Trisolarans. But not long after, Yun Tianming encountered the "soul", the incarnation of a god-level civilization far beyond the Trisolaran world, and learned about the existence of a mysterious race called "The Hidden Ones". They may hold the deep secrets of the distant origins of the universe and life...
