The Spindrift, a planetary exploration vessel on which the protagonist is embarked, is on a mission to investigate the unmanned explorer no. 00511, which disappeared three days ago. The Spindrift, a planetary exploration ship in which the main character is aboard, visited the remote space of the planet TUBOY to investigate the unmanned search vehicle NO. 00511, which disappeared three days ago. The ship visited the frontier space of the planet TUBOY to investigate the unmanned explorer no. 00511, which disappeared three days ago. A few hours after beginning its search near the orbit of the planet TUBOY, it was attacked by an unknown person. The ship was attacked by someone and barely retained its original form. NO.00511 was found in a pitiful state, barely intact, after being attacked by an unknown party. Spindrift was in the process of retrieving the black box of NO. 00511 when it was suddenly attacked from above. The main engine and communication equipment were severely damaged. The main engine and communication equipment were severely damaged, but the ship barely managed to escape into the shadow of the satellite. We were able to escape into the shadow of the satellite. The emergency repairs for Operation Tan were somewhat complete, and the crew was able to calmly analyze the situation. After a few hours, the crew was able to calmly analyze the situation. The black box analysis of the unmanned search vehicle revealed two startling facts. Two startling revelations came to light. First, the alien civilization on the planet TUBOY had been programmed to destroy all life forms. to destroy all life forms. The second is that the unmanned search vehicle NO.00511 discovered the existence of "Earth" and that the robots were programmed to destroy all life on the planet. The second is that the killing robots, having learned of the existence of "Earth" by unmanned explorer no. 00511, are building a huge space battleship in the deep sea. The crew of the Spindrift planned a plan to destroy the enemy space battleship from the inside before it launches. Before the enemy space battleship can be launched, the crew of the Spindrift plans to destroy it from the inside. Three pilots and three state-of-the-art general-purpose space powered tracers The decision was made to entrust the future and hope of the entire human race to three pilots and three state-of-the-art, all-purpose, all-terrain space powered tracers, the "EXECTOR". However, before they could reach the surface of the enemy planet, the other two were destroyed. The last pilot is left to fight a lonely battle with no support from anyone.