The various things that happened to Zhao Chengyue and Ye Wenjie at the Hong'an Base led to Zhao Chengyue's dark heart, which was the original intention of his son Zhao Mingchu to establish a species communist democratic society. Zhao Mingchu used the power of Trisolarans to create a species communist democratic society on the earth. Later, it was handed over to his grandson Zhao Qixin, and was kidnapped by Chu Yan, who killed Zhang Beihai. However, Zhao Qixin failed to keep it all. He could only establish a balance with the Trisolarans after using the Luo Ji left by Zhao Mingchu to Zhao Qixin, but he got Yun Tianming's gift from Zhao Mingchu. The Trisolarans soon broke the balance. In order to stop the Trisolarans, Zhao Mingchu had to launch a broadcast. As a result, the Trisolarans were destroyed and the solar system fell into crisis. The path chosen by Zhao Qixin was not consistent with the path chosen by Vader. Zhao Qixin used Cheng Xin to persuade Vader to surrender. Under the editor's persuasion, Vader faked his death and developed two light-speed spaceships. Finally, Zhao Mingchu returned to save them. With the joint efforts, a group of people lived in the solar system. Zhao Qixin's daughter Aaa Chengxin, Vader, Chu Yan, and the resurrected Zhang Beihai and others went to live in the universe.
Concept: Under the threat of the Trisolarans, human beings each chose their own path, and finally achieved a perfect ending.