In Masamune's town, an explosion at a steel mill has trapped everyone inside, freezing time and preventing any changes. Residents yearn for normalcy, hoping for the day when they can leave.
One day, Masamune's enigmatic classmate Mutsumi leads him to the fifth furnace, where they encounter a girl resembling a wild wolf, unable to speak. This meeting disrupts the town's balance, unleashing an uncontrollable "impulse of love" among the youth, threatening to unravel their world.