Hanarokushou ga Akeru Hi ni

Keitaro has spent six years inside the abandoned Obinata Fireworks factory after his father's disappearance, making fireworks alone and clinging to both a craft and a place that are about to vanish. The next morning, administrative seizure of the factory is due to begin, while the once-green area surrounding it has already been transformed by redevelopment and increasingly extreme environmental conditions.

The factory's approaching destruction brings three young people back together, each having built part of their identity around the place and the people who left it behind. Saving fireworks is not simply about preserving an old building. Each must decide how to face a future shaped by disasters and environmental change. Among ash, chemicals, and colors that exist for only seconds in the sky, they have to choose what deserves to be carried forward and what must finally be released.