Tomoya, Aoi, and Ryo met online as high school students. According to urban legend, a "summer ghost" is a spirit girl that emerges when fireworks are let off. Tomoya is unable to live the life he envisioned. Aoi has trouble finding her place in the world. The once-bright future of Ryo is abruptly shattered. Each everyone needs to meet the summer ghost for their own individual reasons. Where will each of their emotions lead them when life and death cross paths on a June night?