Harry is a resident of Akala Island and a frequent customer of Kiawe's, who has the job of delivering milk to the people of Alola. He was awaiting Kiawe's fresh delivery of Moomoo Milk to make a birthday cake for his mother. On their way to delivering the milk to Harry, however, Ash and Kiawe were delayed by Team Skull Grunts. After defeating them, they arrived too late to deliver the milk, but Harry accepted their apology if they promised to show Harry a Pokémon battle. Ash and Kiawe agreed to this, and showed Harry and his parents a battle between Ash's Pikachu and Kiawe's Turtonator, after Harry managed to bake his mother's birthday cake and presented it to her.