In 2369 AD, an unknown fog descended on Blue Star and swallowed up human civilization.
In the thick fog, the laws of physics are distorted and the boundaries of reality are blurred. Alien beasts with strange shapes and powers far beyond human understanding emerged from the fog, and civilization was on the verge of collapse in an instant.
Fortunately, this battle between evolution and survival has also left a glimmer of hope for mankind. Those whose spirits are polluted and distorted by the fog but are not completely crazy can actually resonate with the spiritual bodies of alien beasts, form contracts, and use their power to fight against various dangers in the fog.
Since then, the symbiotic war between humans and alien beasts has begun. Humans seek balance in mental distortion, and alien beasts awaken their will in contracts. After thousands of years of fighting and alliances, destruction and transformation, the hostile beasts have now become symbiotic partners of mankind against the fog.
Survival requires new rules.
Motto: You only have one life, live it well