Driven by unwavering hope and desperate love, Hibiki and Yuzuki embark on a perilous quest to locate Kurumi, Hibiki's partner who vanished alongside a shadowy organization known only as "X." The disappearance is all the more heartbreaking given Kurumi’s pregnancy and her struggle with the devastating golem virus. Their journey proves relentlessly challenging, pushing them to the brink of despair as they grapple with the agonizing possibility that they may never find her. Just when their resolve falters, they arrive in Salito – a sacred city revered by the "Emblem of Light," a fervent religious group dedicated to forging a new world from the ruins left behind by the golem crisis.