In the distant future, human civilization is in ruins, swallowed up by an eternal conflict called the "Iron Curtain War." This war was started by out-of-control intelligent mechas - "Sky Veil Giant Machines". They were once human creations, but now they have become the deadliest predators in the galaxy. In the ruins on the verge of despair, a young "chronological sentinel" - Su Guang, unexpectedly "awakened" on the verge of death. He did not simply gain power, but established a connection with the broken torrent of time. Countless fragments of the past and future that did not belong to him poured into his mind, as well as a vague but extremely heavy mission: to prevent the catastrophe that caused all things to wither.
Pulled by an irresistible force, Su Guang was thrown into the distant past called the "Ancient Realm". There is no roar of steel behemoths here, only the primitive and majestic power of nature, as well as the nascent civilization and ancient legends. With his knowledge of the future and unstable timing abilities, he has become the most incompatible existence in the world.
In the ancient domain, he met Zhaohua, a young wise man and leader of the Yunlan tribe. Zhaohua is smart and courageous, and shoulders the important responsibility for the survival of the tribe. She has extraordinary insight into the visions and ancient prophecies between heaven and earth. Faced with the sudden arrival of Su Guang, she went from initial vigilance to gradual trust. The two joined forces to try to find future vitality in the ancient fog.
However, Tracer is not the only traveler across the rift in time. Spies from different factions in the future have also quietly sneaked into the ancient domain, trying to rewrite history to achieve their own goals.
