Production Companies: KDDI , GYAO , dentsu , Abe Shuji , Kodansha , Nippan Group Holdings , Nippon Television Network Corporation , Robot Communications , Shirogumi , TOHO , VAP , Yahoo! Japan , Yomiuri Telecasting Corporation .
Overview: Humanity is under attack by human-mimicking flesh-eating alien parasites. One parasite bonds with his young high school student host, and he convinces the parasite to help him stop the others.