Anti-Fairy World Pet Store is a place where evil pets live. It is also the home of Anti-Sparky and the Grim Reaper.
Unlike what happened to Timmy and Sparky in Fairly OddPet, Foop and Anti-Sparky didn't get along that much but Anti-Sparky decided to agree to switch with Sparky anyways.
So Foop switched Sparky with Anti-Sparky by letting Sparky chase a ball around the world and then let Anti-Sparky cause chaos around the Turner family.
The plan worked so the Anti-Fairy Council decided to order Foop into replacing all of the pets in Dimmsdale with all of the evil pets in the Anti-Fairy World Pet Store and let them 'cause chaos around the city.
- One of the evil animals looks exactly like Dudley Puppy and Keswick from another Butch Hartman show, "T.U.F.F. Puppy".