Kuno Totono, a curly-haired college student, visits Hiroshima and becomes embroiled in a mystery surrounding the inheritance of the Kariatsumari family's assets, using his intelligence and loquaciousness to unravel the case.
| Actor | Role |
|---|---|
 Masaki SudaTotono Kuno | Totono Kuno |
 Ko ShibasakiYura Akamine | Yura Akamine |
 Kouhei MatsushitaKurumasaka Asaharu | Kurumasaka Asaharu |
 Keita MachidaRikinosuke Kariatsumari | Rikinosuke Kariatsumari |
 Nanoka HaraShioji Kariatsumari | Shioji Kariatsumari |
 Riku HagiwaraNeo Hahakabe | Neo Hahakabe |
 Honami SuzukiNot listed | Not listed |
 Kenichi TakitohNot listed | Not listed |
 Keiko MatsuzakaNot listed | Not listed |
 Takuzo KadonoNot listed | Not listed |
 Yasunori DantaNot listed | Not listed |
 DendenNot listed | Not listed |
 Toru NomaguchiNot listed | Not listed |
 Nanako MatsushimaNot listed | Not listed |
 Sairi ItoNot listed | Not listed |
 Matsuya OnoeNot listed | Not listed |
 Michitaka TsutsuiNot listed | Not listed |
 Eita NagayamaNot listed | Not listed |
 Michiko IwahashiNot listed | Not listed |