In a little-known corner of the earth, there is a site of an ancient civilization - Paraji. Paraji is like a supreme seal, cutting off the terrifying road to hell. On this day, Kurosaki (マイケル富財), driven by vigorous desire, unlocked the seal and brought the terrible Yanmo beast Saigegu to the world. The messenger of justice, Ultraman X, stepped forward, but he was surrounded by Saigegu's hell light and eventually disappeared. The members of Xio followed the footsteps of archaeologist Tamashiro Tsukasa (played by Yoshimoto Takami) to find the key to seal Yanmo beast. During this period, Tsukasa's son (played by Takagi Seirai) was infected by his mother's strong feelings and glowed with magical power. The Xio warriors united as one, cooperating with Ultraman X and the hell monster army to launch a decisive battle...