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? Ando's desperate attempt to prevent a gas station explosion will bring him face-to-face with Inukai. But will their confrontation only spur on Ando's decision to fight, or will new challenges be too much for him to bear...?