Set twenty years before the events of Square Enix's arcade game Starwing Paradox, this sci-fi mecha film is a prequel that widens the game's universe. In modern-day Japan, high school student You wants to become a musician, but his family opposes it and his band is fighting among itself. While walking through Shibuya he hears a voice pleading for help, and a blinding white light swallows him. Far across the cosmos, the celestial body Meguriboshi stands close to war over an energy source called Hoshichi, or Star Blood. Just as the warring nations near a ceasefire, a huge field of orbital debris comes down on them. Laco, a young mechanic, hurries to help the planet's defense force and ends up in grave danger. As she loses consciousness, her mind links with You's, and their fates become bound together.