In the year AD 3567, the once proud civilization of humanity has crumbled into ruins. Survivors live in constant peril due to the Gardeners, enigmatic robotic weapons unleashed from the Moon. Braving danger, young daredevils must hunt Gardeners to earn a living. Though advanced, self-sustaining tech played a part in civilization's demise, certain pockets of cities still function, providing limited aid to humankind. But a chance meeting between Tokito Aizawa and Tea alters everything. Their encounter unleashes powers surpassing even those of the Gardeners, offering a ray of hope for a brighter future for humanity.