On Mercury, cutting‑edge cybernetic prosthetics have spawned colossal pilotable machines. Yet the extended operation of these bioengineered marvels exacts a heavy price on operators. As Merucian mobile suits grow ever more powerful, dread spreads among Earth's populace.
On the day Ericht turns four, pilot Elnora Samaya evaluates the newest Gundam Lfrith under the vigilant gaze of its designer, Cardo Nabo. Ignoring directives, Ericht sneaks into Elnora's workplace within the humming orbital hangar; an uncanny connection between child and machine sparks ensuing turmoil amid rising global scrutiny while the planet's engineers brace for potential backlash and the world watches.