While working part-time at an izakaya, Yuko practices sword fighting at a dojo with her boyfriend Kenji. One day, Hiromi, who claims to be her long-lost sister from 19 years ago, appears before her. Yuko is surprised, but believes Hiromi when she tells her a secret that only her family knows, and they begin living together...
| Actor | Role |
|---|---|
 Ai AbeHiroko Yamaguchi | Hiroko Yamaguchi |
 Hitomi EnjôHiromi Yamaguchi | Hiromi Yamaguchi |
| YYuzu ShirosakiAngela Maki | Angela Maki |
 Riko MatsuiMiyuki Ôyama | Miyuki Ôyama |
 Yoko SatomiJunko Shima | Junko Shima |
| SSatomi ShinozakiMoe Yoshizawa | Moe Yoshizawa |
| TTakahiro NomuraIsamu Chiba | Isamu Chiba |
 Seiji NakamitsuTakeo Ôyama | Takeo Ôyama |
 Manzo ShinraLee Changgon | Lee Changgon |
| HHideki TachibanaKenji Ôishi | Kenji Ôishi |
| SSeiji NagakawaDôjô Student | Dôjô Student |
| TTaizôNot listed | Not listed |