Burunga 1-sei

An old man visits a boy, Jiro Matsuzawa. The old man gives Jiro a strange living creature, Burunga. Also, the old man gives Gamonos another strange living creature, Burungo. Gamonos is a criminal. Burunga and Burungo have the power of changing their form according to Jiro and Gamonos's wishes. Burunga and Burungo are usually quiet. But, when they are aroused, they transform into monsters and destroy all human beings.