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?
Blisssey's RS Dex entry so people aren't as confused: Blissey senses sadness with its fluffy coat of fur. If it does so, this Pokémon will rush over to the sad person, however far they may be, to share an egg of happiness that brings a smile to any face.