One day, Chizuru (Nana Asakawa) and Mioto (Aino Kuribayashi) enters problem-solving office Kurogarasu. The two girls look naive, but Chizuru is a leader of a enjo kosai group. Their group makes money by having young girls date older men for money. Thugs are threatening Chizuru for money. Chizuru pays 2.5 million yen to the problem-solving office Kurogarasu for their help. Kuroto (Tsubasa Sakiyama), Yuya (Keisuke Ueda) and Hina (Moga Mogami) take the case and begin to investigate the thugs, but they find something unexpected.
| Actor | Role |
|---|---|
 Tsubasa SakiyamaKuroto | Kuroto |
 Keisuke UedaYuya | Yuya |
 Moga MogamiHina | Hina |
 Nana AsakawaChizuru | Chizuru |
 Aino KuribayashiMioto | Mioto |
 Shun SugataKanai | Kanai |
 Shinji MatsubayashiKobayashi | Kobayashi |
 Saeki YuzuhaNot listed | Not listed |