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