Ryujin Misaki, located at the edge of the Genkai Sea, is known as an isolation ward for leprosy patients. When Saotome, a sword master and guard of the Shogun, hears news of a doctor gone missing, he begins to suspect that things are not what they seem at Ryujin Misaki. Intent on discovering the truth, Saotome launches a private investigation.
| Actor | Role |
|---|---|
 Utaemon IchikawaSaotome Mondonosuke | Saotome Mondonosuke |
 Kōtarō SatomiNot listed | Not listed |
 Chiyonosuke AzumaHayakawa Samanosuke | Hayakawa Samanosuke |
 Hiroko SakuramachiKikumaru | Kikumaru |
 Machiko YashiroAsano | Asano |
 Kikuko HojoMiyuki | Miyuki |
 Isao YamagataNot listed | Not listed |
 Kusuo AbeIto Gunbei | Ito Gunbei |
| SSeishiro SawamuraKuroda Tadatsugu | Kuroda Tadatsugu |
 Nijiko KiyokawaOtora | Otora |
 Shunji SakaiKinai | Kinai |
| JJuro HoshiNot listed | Not listed |
 Kichijirō UedaNot listed | Not listed |
| SSanpei TairaNot listed | Not listed |
| MMitsukazu KawamuraNot listed | Not listed |
| MMasao HoriNot listed | Not listed |
| EEijirō SekineNot listed | Not listed |
| SShintaro NasuNot listed | Not listed |
| RReiji TsumuraNot listed | Not listed |
| KKinya SuzukiNot listed | Not listed |
 Michimaro OtabeNot listed | Not listed |
| IIkuo OkaNot listed | Not listed |
| KKyōnosuke MuraiNot listed | Not listed |
| SShunya WazakiNot listed | Not listed |
| KKenji NagataNot listed | Not listed |
 Koji ArimaNot listed | Not listed |
 Hibari MisoraNot listed | Not listed |