Horizon in the Middle of Nowhere

In a distant future, humanity, having fled a devastated Earth, is forced to return, finding only Japan habitable. To accommodate the population, pocket dimensions are built, and history is reenacted according to the Testament. In 1648 of the Testament Era, the refugees of Japan live on the city-ship Musashi, constantly traversing the land under the watchful eye of the Testament Union. The Union controls the historical reenactments, but the revelation of future events has stopped, fueling rumors of an impending apocalypse. Toori Aoi, the student council president of Musashi Ariadust Academy, seizes this opportunity to lead his classmates in a rebellion to reclaim their homeland from the nations that conquered Japan. The series explores themes of historical reenactment, survival, and the fight for freedom in a world teetering on the brink of chaos.