My theory about this cat:
This cat is a stealer in a cat village and that's also how they got a fish. And the fish shop shopkeeper gets mad for all of his fish being stolen, so he poisoned all his fish, and when the cat eats it, they die. But, what the fish shop shopkeeper didn't know is that the cat was stealing fish to feed their 9 siblings because their mom and dad are dead. They all die, and when the village finds out about the dead bodies, the fish shop shopkeeper gets really sad, so he kills himself. This artwork is the photo of the cat when the cats ate the poisoned fish.