During his sleep, Shinnosuke enters a fantasy world where he could find all his favorite things, starting from chocolates, cakes and young beautiful girls. But it soon turns out to be a nightmare world where Shinnosuke, his friends and family get trapped and are unable to escape. They’ve also met a mysterious girl named Saki who is somehow connected to these dreams. Now it is up to Shinnosuke and the Kasukabe Defence Group to save their dreams and escape from the nightmare world.