As humanity advances into the era of space exploration, it inevitably encounters a powerful and hostile civilization. War creatures from another dimension invade, unleashing unimaginable devastation upon the solar system. To combat these strange entities, capable of moving freely across the cosmos and wielding immense power, humanity develops an arsenal of advanced weaponry: combat soldiers, enchanted battle armor, and the bio-parasitic entities known as Lightbearers. Yet, possessing weapons alone is not the key to victory… The demands of interstellar warfare push human technology to its peak. But under the mounting pressure, ideological divisions emerge, ultimately fracturing humanity itself. One faction remains to defend their home, while the other ventures forth, assembling a grand fleet to forge a new path as a starship civilization.