One day Mt. Bikkura erupts and blows up a huge egg, which hatches a funny little monster named Jazora. Astray in the human world, he is surprised and puzzled as everything he hears and sees is so strange and wonderful, and he is involved in odd affairs one after another. Besides, people around him are often drawn into humorous troubles. He has a magic ability to eat metal and produce a variety of mechanical devices. Also, he can blow flames out of his mouth and jump high using his powerful tail. Yet he is so innocent and friendly that he becomes popular wherever he goes.