A woman who wanders into a mansion colored by the dim glow of dusk encounters a ghost. Her fateful connection with it. Will she ever be able to leave the mansion?

Yurado, a girl who admires her mother, a Pokémon battle commentator. She lives happily with Kangaskhan, and today too, she’s in front of her diorama, pretending to be a commentator. “Mother is about to begin very important work, so I beseech you to keep quiet!” Though she is asked this, Yurado ends up making a diorama with Kangaskhan. Their time limit is until the battle tournament ends! Yurado and Kangaskhan set out to build a huge, huge diorama, but then an incident occurs...!?