The psychiatrist Li Qing received a patient claiming to be the “Creator God”. The patient recounted his experiences of time travel: “Dr. Li, I discovered that I have a superpower. I created a microcosm in this room and have initiated multiple great floods to annihilate their beings, but now I am about to die.” A few days later, Li Qing suddenly receives news of the patient's death and discovers that everything he said was true. And Li must deal with the patient's belongings, extinguishing this civilization world within the ward, or else this civilization might destroy all of humanity on Earth. “You, become the nerve cells of this shelter, in the control room, to manage the direction of the shelter's movement!” “You, become the muscle cells, to control the fins and flagella outside the shelter!” “Oh, it seems you are quite impressive, you single-cell beings, have evolved into a fish kingdom.”