Yuna has a class visit to the pineapple factory. Yuna was late because Jumba invented a good deed memory to let Yuna type her diaries. But Stitch looked at the pineapples, he was coming to invade the factory. Then, a blue slug (which is one of the Izayoi spirits) attacked the pineapple factory. Jumba invents an electric gun to shoot the blue slug.
