You are a up coming Pokémon trainer, You don't really know if you want to become a Pokémon Champion and uses your Pokémon to protect and help the demon slayer core or just have Pokémon as pets, Some human have been turn into part demon part Pokémon and that from being turn from a demon Pokémon, As you go expiring into the forest you see a balk and green checkered komoto covered in blood and on the floor move around and as you check you see a Eevee with a bamboo mussel and human like cloths