[Quick transmigration + male-male leads; most characters don’t change into humans, with transformations determined by each small world’s setting]
Shi Mian died after slipping on a wet surface and hitting his head. No one noticed he was gone.
Then Shi Mian came back to life, saved by someone called the System, but he had to complete missions.
The Main God presides over countless small worlds, where the protagonists’ endings may be happy or tragic, and everything unfolds in an orderly fashion.
One day, an unknown virus invaded the small worlds. Two divine officials carrying out a social-practice mission were caught in the attack, and the Main God was too busy stabilizing the Quick Transmigration Bureau to spare anyone.
So Shi Mian, from one of the small worlds, was summoned and began carrying out missions as the protagonist’s pet.