Ren Takamura arrived on Earth as an alien infant fleeing planetary devastation, his extraordinary intellect and technomancy—the ability to forge advanced technology from raw materials—hidden beneath the guise of an ordinary boy raised in rural Japan. Years of restraint in a peaceful world kept his superhuman potential dormant, though his fascination with high-tech heroes never waned. When an interdimensional rift transports Ren and his classmates to a war-torn realm overrun by monsters and chaos, his true purpose crystallizes. Surrounded by helpless humans facing annihilation, he seizes the moment to become the hero he was always meant to be—not through magic or swordplay, but through technological mastery that eclipses every civilization's achievements. In a world where survival depends on innovation, Ren Takamura will reshape destiny itself.