Pikachu no Kirakira Daisousaku!

During a summer day filled with energy, Pikachu and companions play with a beach ball. While chasing and diving in a river, they end up near a city. Confused about their location, they look around from rooftops. Suddenly, a collision occurs between jagged-eared Pichu and Muchul. The two argue, as Sparkling, a gift for Kireihana, is missing. It turns out to be her birthday, making the situation urgent. A search for Sparkling begins. Meanwhile, Nyarth-tachi also have their own interest in it.