In the chaos, Arceus foresees that the multiverse he created will be in chaos in the future due to aliens.
What are you thinking about?
"I didn't expect that I had just finished creating the multiverse and planned to take a break. This would happen hundreds of millions of years in the future. It seems that I was too silent."
"Before anything happens, I have decided! Start managing the Pokémon Multiverse from today!"
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.