A handful of young girls possessing odd abilities and a tree that has sprouted through an abandoned railcar cling to survival in a barren wasteland, hunting for the land's last water sources. Their daily battle for existence is halted when Wakaba appears, a boy whose memories extend only to his own name. The girls and their new ally embark on a treacherous trek across seas of scorching crimson mist— determined to secure the supplies needed to sustain them on faraway, perilous islands teeming with mechanized insects. Their final destiny hinges on their own resilience and Wakaba's uncanny knack for deciphering the Kemurikusa: enigmatic luminescent foliage bearing extraordinary powers. Beyond the girls, Wakaba, and swarms of voracious bugs, the Kemurikusa represent the last flickers of life left in this realm. How did the world collapse into such ruin? Why do countless structures stand empty, devoid of inhabitants? Wakaba and the girls hold no answers to these mysteries, implying that truth lies solely within the Kemurikusa. Their journey will test the limits of hope and the power of memories.
