On graduation day, Hiroko celebrated her graduation alone. It was a compensated dating encounter in a love hotel room... With no plans for after graduation, Hiroko, along with her childhood friend Hanamaru, takes the gun left behind by her older brother figure, Shinichi, and commits a robbery. They head straight for the Sea of Japan... There, they find Hiromi waiting for Shinichi, who is behind bars.
| Actor | Role |
|---|---|
| AAYAHiroko Araki | Hiroko Araki |
| EErina AoyamaHiromi Takanasi | Hiromi Takanasi |
| MMayuko TanakaSaki Miyashita | Saki Miyashita |
 Yuya MatsuuraHanamaru Kaneda | Hanamaru Kaneda |
 Mutsuo YoshiokaHideshi Sano | Hideshi Sano |
| SSeshioTamao Ide | Tamao Ide |
 Yuya IshikawaShinichi Hiramatsu | Shinichi Hiramatsu |