Pokémon evolving with their trainers. I had my own idea similar to this for Halloween someday, with a cosplay-like thing based off one of my favorite Pokémon. I had Dratini, Riolu, Dragonite, Lugia or Torchic in mind.
Oh my goodness. the father is a DITTO! And is the best parent ever! THE FEELS! I didn't realize until the end it was a ditto! At first I was like, what is up with all these other Pokemon are they his friends?