In the Great Xia Dynasty, the master of beast control was the most respected, the black mist disaster engulfed the world, and cannon fodder on the border was like grass. Lin Yan's soul came through and became a low-level beastmaster waiting to be slaughtered in the Tieyanguan death camp. When he was about to die, he awakened the mysterious "Illustration of All Souls" and accidentally formed a taboo symbiosis contract with the dying mutated young Kun.
The frontier army is tight and resources are scarce. He abandons the idea of keeping himself safe and secures himself. He hunts monsters and seizes resources secretly with the help of pictures and records, allowing young Kun to grow up against the will of nature. However, he is coveted by the military because of his sharpness. Will he join the direct line and lose his freedom, or will he defect and become a wanted criminal? Lin Yan and Kun embarked on a solo journey and became enemies of the empire from then on.
Traveling around, he explores secret realms, searches for secrets, and gathers his partners in common adversity: Leng Ao Shadow Blade, Brave Cang Yan, Wise Spirit Eyes, and Jiaohan Rongrong, uniting the team with the "symbiosis bond". However, the Marshal of the Royal Beast Supervisor used righteousness to coerce him and wanted to seize Kun's weapons. He led his team to fight to the death and break through, strengthening his belief that "fetters come first".
When the strength reaches its peak, the truth of the Black Mist emerges - this is not a natural disaster, but the resentful aftermath of an ancient forbidden experiment. The royal family wants to "repair the sky" with millions of beast masters and beast pets as sacrifices. The ultimate choice is before us: sacrifice your friends for the peace of the world, or escape with everyone and let the world collapse?
Lin Yan took the All Souls Illustrated as a guide and the symbiotic bond of all members as the core to break the old seal, create a new "symbiotic law", and turn the resentment of the black fog into the vitality of the world. In the end, he and his companions did not ascend to the throne, but became the guardians of the free world, using the power of symbiosis to rewrite the rules of survival in the world of beast control.
