Simon and Kamina live in an underground city monitored by the village chief. When Simon stumbles upon an artifact and beastmen invade from the surface, Simon and Kamina rebel against them. Tetsuya Kakihara, Katsuyuki Konishi, Marina Inoue, Yukari Fukui, Nobuyuki Hiyama, Mitsuki Saiga, Masaya Onosaka Added on Amazon Prime 2023-07-27.