Chie, who's chosen as 'Ms. Woman Diver', and her friend Yuki, have been missing for several days after they left for Tokyo to be interviewed by a magazine. Later, Yuki is found dead in the sea. Yoshi, Chie's sister, along with sailor Shunsuke, try to find Chie. Soon they learn about a conspiracy with diamonds in a ship sunk in the sea.
| Actor | Role |
|---|---|
| MMichiko MaedaNot listed | Not listed |
 Utako MitsuyaNot listed | Not listed |
| EEiji WakasugiNot listed | Not listed |
| AAsao MatsumotoNot listed | Not listed |
 Masayo BanriNot listed | Not listed |
 Shigeru OguraNot listed | Not listed |
| AArata ShibataNot listed | Not listed |
| SSōzaburō KikuchiNot listed | Not listed |
| SShinji ArimaNot listed | Not listed |
| KKyōji KokonoeNot listed | Not listed |
 Hiroshi HayashiNot listed | Not listed |