In Nekota City, Inukai and his team of vigilantes known as Grasshopper protect the citizens from a rising crime wave and the greedy hands of businessmen bent on turning every block into a modern strip mall. But is this public hero actually a devil in disguise? And can high school student Ando use his mysterious power of ventriloquism to uncover the truth before it's too late?

As Ando leans to use his powers effectively, he must decide whether or not to oppose Inukai. A decision made much harder when it could cost him his life.