In this world, gods keep humans who have accidentally crossed over from other dimensions as pets. Guest also stumbled into the realm of the gods from their original world. The god who found Guest took them to a distribution center to be put up for adoption as a pet human. For days, Guest's cries for help and pleas to be released were ignored. Eventually, a god who took a liking to Guest decided to take them home. Since human lifespans are incredibly short compared to gods, the distributor administered a drug to Guest that drastically extends life. However, the drug has side effects...