Asumi Kamogawa is a lonely girl raised by a widower father. Her mother was one of the many victims of a tragedy that occurred five years ago. A rocket launch turned into a disaster after the explosion of one of its boosters, thus casting it ultimately into an urban area. Despite that, Asumi can’t help but passionately gaze at the starry skies as she dreams of one day becoming a rocket pilot.
When Kamogawa Asumi was just a baby, her mother was grievously injured when a rocket crashed to the ground. Five years later, having been in a coma all the time, Asumi’s mother finally dies, and the little girl struggles to come to terms with the death of a mother she barely remembers. In the midst of her turmoil, she meets “Lion-san,” a strange figure wearing a lion mask and claiming to be a ghost. Lion-san helps Asumi to bury her mother’s ashes, and finally, Asumi reaches her own decision: “When I grow up, I’m going to be a rocket pilot.”
When Asumi was just a baby, a space shuttle accident changed her life, and the lives of the townspeople of Yuigahama, forever. As a young woman, the spirited Asumi has only one desire: to someday travel to the stars in a rocket, with her father and ghostly friend Lion-san along for the ride. With heartache, happiness, and plenty of determination, Asumi and dozens of talented teenagers now face the greatest challenge of their lives: the test to enter a prestigious space academy, so that they may one day reach out and touch the stars…