According to an urban legend, the mysterious ghost of a girl appears to you during fireworks in the summer. She is said to have committed suicide, and now she restlessly haunts an old airport. The three students Tomoya, Aoi and Ryo set out to find her, and it quickly becomes apparent that the ghost - Ayane, as she introduces herself - has a secret. And everyone in the trio of the living also has their own reasons for wanting to meet Ayane. For it soon becomes clear that this coming together is more than just a summer ghost hunt.