On Ishigaki Island, conflict brews over a large-scale bridge construction project. One day, Yajima (Sho Aoyagi), a public official from the Ministry of Environment, is sent to Ishigaki Island. Yajima announces to his colleagues that he is absolutely opposed to the bridge construction project and that he wil become a coral ranger who protects the coral reef there. This surprises his colleagues.
| Actor | Role |
|---|---|
 Sho AoyagiTakashi Yajima | Takashi Yajima |
 Nozomi SasakiRisa Shimabukuro | Risa Shimabukuro |
 Kei TanakaHiroto Kishitani | Hiroto Kishitani |
 Tetsuhiro IkedaYutaka Kizaki | Yutaka Kizaki |
 Atsuko TakahataYoko Shimajiri | Yoko Shimajiri |
 Isao NatsuyagiYogi | Yogi |
 Daikichi SugawaraPreservator Ippei Nakayama | Preservator Ippei Nakayama |
 Kenji MizuhashiRanger Koji Hirata | Ranger Koji Hirata |
 Tadashi SakataNewspaper Reporter Makoto Tanabe | Newspaper Reporter Makoto Tanabe |
 Ritsuko TanakaTokiko Yara | Tokiko Yara |
 Hayato FujikiKenji Yara | Kenji Yara |
 Fumiyo KohinataNational Park Section Chief Hiroki Hayami | National Park Section Chief Hiroki Hayami |