The story tells of a male protagonist who wanders through the universe during a critical time for humanity's survival. The protagonist, Edje, was raised with a Gold Race as his father and a lifeboat incubation machine as his mother. Edje is able to merge with the strongest of the Hero Race and freely use the abilities generated from this fusion. At a pivotal moment for humanity's survival, what is the male protagonist doing in the universe? Various races answered the call of the Gold Race and successfully entered the universe. The humans who ultimately completed this mission came to be known as the Iron Race. After countless years, humanity faces a greater threat from the powerful Silver Race, leading to another crisis. Princess Dianeraila carries the fate of humanity’s survival according to a prophecy passed down through generations by the Royal Gold Race. She sets out toward a distant galaxy where she encounters a human youth. The meeting between the princess and the young man brings about a great turning point in the destiny of the universe.