Huan Mei is a soul who doesn't remember who he is. He has a "Civilization Retrospective System" since he woke up. The task of the system is to execute a plan - the "Chinese History Era Completion Plan."
Do you know why civilization ends?
Do you know that the entropy of the universe increases and decreases?
In the end, it was discovered that Huanmei turned out to be the soul of China. He wants to bring back all the lost Chinese civilization!
The essence of the system: It is not a foreign thing, but the manifestation of Huanmei's own civilization obsession and the embodiment of the self-saving instinct of Chinese civilization. Therefore, the "power" it rewards is essentially his self-completion and awakening as the "soul of civilization" as the light of civilization reappears.
Henmei finally retrieved all history and said "I am civilization".