It is said that at the top of the high mountain, there is an enormous monster called Megaro-Dragon, and that this monster possesses magical pickles called Happy-pickles, which can make any dream come true. Nike and Kukuri go to the mountain. Having heard a prophesy, a shrine maiden named Juju also goes there in search of the pickles. Nike, Kukuri and Juju together defeat various monsters and overcome many difficulties and troubles before they finally confront the legendary monster, Megaro-Dragon.