Minami, a high school boy living through suffocating, stagnant days, encounters Kita—a mysterious student who rarely attends school—on the day of the summer fireworks festival. Kita suddenly makes an outrageous request: "I want you to turn my ashes into fireworks!" A one-of-a-kind coming-of-age story that explodes through the feelings of youth and breaks free from a world filled with despair.