[Machine Translation] It has been several centuries since the slow decline of the human race. The earth already belongs to "fairies". The job of the international civil servant "mediator" is to mediate between fairies and humans. But...it's a quiet job. The "Summer Electricity Festival" is held in the village of camphor tree, which has been energized by the Human Monument Project, which aims to record all of humanity's declining achievements. Meanwhile, the fairies return to their hometown. ...? The fairies are gone! After a delicate goodbye, we headed off to investigate the city ruins...