In the near future, Vivy, a diva-type A.I., went up on stage each day with hopes of putting her heart into her song. One day, the A.I. Matsumoto, who claims to have arrived from 100 years in the future, appears before Vivy with an important request...
An urban legend says that lighting fireworks at an abandoned airfield will beckon the "summer ghost," a spirit that can answer any question. Three teenagers, Tomoya, Aoi, and Ryo, each have their own reason to show up one day. When a ghost named Ayane appears, she reveals she is only visible to those "who are about to touch their death." Compelled by the ghost and her message, Tomoya begins regularly visiting the airfield to uncover the true purpose of her visits.
Kotarou Azumi and Akane Mizuno became third year students at junior high school and are classmates for the first time. These two, along with fellow classmates, Chinatsu Nishio and Takumi Hira, relate to their peers through mutual understandings and feelings. As their final year at junior high school progresses, the group overcome their challenges to mature and become aware of changes in themselves.
