A retired warrior comes to see his former lord and learns that someone is making indestructible swords from some unknown metal. He is sent together with a swordsman to investigate the source. Along the way they meet a young girl working as a beekeeper. She is later witness to the appearance of three strange females from another dimension. They are searching for a lost weapon that has landed on earth and as one of them lay dying she enlists the girl to help them control the strange beast/weapon. Meanwhile the warrior and the swordsman learn that an old nemesis has created the swords from the shell that surrounded the alien weapon. Soon the alien beast/weapon is awakened and battle for control ensues.

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