I'm From Alien Space

Xu Qian time-traveled to a world where he could contract with spiritual beasts. During his journey, he obtained the identity of a "Fixer", awakened a system, and got his first contracted spiritual beast, Space-time Beast. After learning the significance behind his "Fixer" identity, and in order to prevent invasions from other worlds and correct the rules of this world, Xu Qian began to utilize the system to handle the alien realms, thereby strengthening the system and his spiritual beasts.