Sato e Isobe son dos adolescentes que viven sus días de colegiales en un tranquilo pueblo costero. Ambos deciden embarcarse en una relación puramente física, pero pronto se darán cuenta que dejar de lado los sentimientos resulta muy complicado. Paseando por la orilla de un mar lleno de misterios, ambos aprenderán que las cosas de dos, pueden traer graves consecuencias para terceros.
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A rampage at a university, the students Yuka and Mai are frozen with fear. At gunpoint, the two perpetrators try to force them to decide which of them must die next. In a moment of distraction, Mai tries to escape but is badly injured by a shot in the back. After the killers have moved on, a student, Hayashi Yuka, comes to the rescue. But even as they try to save Mai together, the killers return. Hayashi is driven to an act of desperation that leaves him with deep wounds.
