When he returns to Earth to attend the wedding of his friend in Saipan, Musashi meets a beautiful girl named Shau who claims to come from the bottom of the sea. Just then, Monster Scorpis reappears in the sky above the island and Musashi faces the monster in order to protect the girl. What is the girl's true form? And what is the strange shadowy form that follows the monster Scorpis?
Taiyo Sugiura
Musashi Haruno / Ultraman Cosmos
Miho Kaneko
Mari Kawase
Masatoshi Matsuo
Alien Gyashi Jin
Mai Saito
Alien Gyashi Shau
Shingo Kazami
Kido
Risa Saito
Hyuga
Nobuyuki Kase
Kanou
Koji Nakamura
Makabe
