The girls take all of their transformed Crystal Animals to the underground shrine to seek answers, only to be confronted by Bibly. As the Cures struggle to fight against the darkness consuming Bibly, everyone is suddenly sent back in time one hundred years to the Showa era, when Strawberry Mountain was stained in darkness. It is there that they meet the legendary Pretty Cure of the past, Lumière, and help her make sweets for all the townsfolk...