Because the animal fairy wanted to help the animals move to the winter forest, Tinker Bell helped the animal fairy finish her work. Tinker bell was surprised to see the changes of animals in the forest in winter, so she sneaked across the border when the animal fairy was not looking. Tinker bell felt incredible when she saw her wings glowing, so she went to the library to look up books about glowing wings, but the pages that recorded glowing wings were bitten by bookworms. Tinker bell learned from the librarian's words that there was a librarian in the forest in winter, and he knew the password about the glowing wings. So, once again, Dingdang came to the winter forest armed to the teeth. Here, Tinker Bell meets a periwinkle fairy who is inseparable from herself, and at the same time discovers a secret that can change the whole fairy world.