Dewey Thomas was a math teacher who worked at the school in Sansapul City where various kids have been turned into Pokemorphs. He found the transformed kids to be nothing more than a nuisance that disturbed the normal everyday life of school, and was very vocal about how they should be kicked out so that proper order could be returned.

One day, however, as Dewey was enjoying a cup of coffee while speaking to the school’s principal, he would find himself transforming into what he had been increasingly vocal against. Unbeknownst to Dewey, his coffee had been spiked with Pokemorph Catalyst.