Many persons visit the hot springs resort to try out Reiko's famous vagina with quivering walls, "the sensation of worms wiggling about"... that won her her nickname (Mimizu = earthworm).
| Actor | Role |
|---|---|
 Reiko IkeReiko | Reiko |
 Miki SugimotoNot listed | Not listed |
| JJunko TodaMatsu'e (as Toshiko Sawa) | Matsu'e (as Toshiko Sawa) |
 Yasuko MatsuiNot listed | Not listed |
| WWakako ChiharaNot listed | Not listed |
 Asao KoikeNot listed | Not listed |
 Shingo YamashiroNot listed | Not listed |
| HHideo ShimadaNot listed | Not listed |
 Tōru YuriNot listed | Not listed |
 Hiroshi NawaNot listed | Not listed |
 Taiji TonoyamaNot listed | Not listed |
 Yōko MiharaNot listed | Not listed |
 Akira ŌizumiNot listed | Not listed |
| MMitsuko AoiNot listed | Not listed |
 Miwako OnayaNot listed | Not listed |