In the year 2801, human civilization knocked on the ultimate door of the universe.
After inheriting all the legacies of Ani’s balance, Morningstar’s contradiction, Shen Lingfeng’s protection, and more, scientist Enqi led her team to touch the boundary of physics that could never be crossed in a lunar laboratory: absolute zero (-273.15°C). Yet the breakthrough brought no godlike technology, only a “sigh” from the edge of the universe. A chaotic consciousness called “The Tide of the Past” awoke with it: the lingering echoes of every civilization that had vanished, and the chilling harbinger of heat death.
Faced with a cosmic sorrow cold enough to freeze the soul, humanity chose neither war nor escape. They built four miraculous “Zero-Degree Wonders,” vowing to give form to the silent dead by weaving the shattered memories of civilizations into an eternal “Nebula of Meaning.” This is a war with no enemy, a funeral for all those who have passed away across the universe. Enqi and her civilization will define the ultimate answer to existence here: when all things must eventually succumb to heat death, only the “echoes” created by life can endure in the void.
