花绿青绽放的黎明

"That firework cut out a piece of the universe—" In the midst of a lush green forest lies the fireworks factory, Obatate Fireworks Shop, which is being forced to vacate due to the town's redevelopment. Keitaro Obatate has barricaded himself there for four years, immersing himself in fireworks making to complete the legendary firework known as <Shuhari>, taking the place of his father who vanished. Meanwhile, Kaoru, his childhood friend living in Tokyo, had left their hometown due to a certain incident in the past. However, with the eviction looming tomorrow, she visits the Obatate household. The two meet again and devise a surprising plan to uncover the secret of the lost firework. The key lies in a beautiful blue pigment called "Hanrokushō"—