Since a great war in modern times almost wiped out the demon world, the demon world integrated all its resources to vigorously cultivate newborns. All newly born cubs need to enter the nursery to learn to improve their survival rate until they enter the human world to survive the tribulation before transforming. The tribulations that each demon has to survive are different, but they are all related to humans. The seniors at the nursery only say that the first thing to do when entering the mortal world is to find a good partner for the tribulation, and you must be careful. As for the content of overcoming the tribulation, not a word was mentioned, as if a forbidden curse had been placed on it.
Idea: The sun is just right, drink a cup of milk tea and play with the cat