Kinuyo is a daughter of doctor of Chinese medicine, and Yasuo is a son of surgeon. Their families always fight like cat and dog. This relationship is ancestral. Although Kinuyo and Yasuo love each other, they have different thoughts toward treatments.
| Actor | Role |
|---|---|
 Kinuyo TanakaKinuyo Yamaoka | Kinuyo Yamaoka |
 Takeshi SakamotoTessai Yamaoka | Tessai Yamaoka |
| MMitsuko HigashiyamaKazuko Kanda, assistant | Kazuko Kanda, assistant |
 Shin SaburiYasuo Asano | Yasuo Asano |
 Mitsuko YoshikawaYone, Yasuo's mother | Yone, Yasuo's mother |
| FFumiko ShimadaNot listed | Not listed |
| TToeko ShimadaToshiko, Yasuo's sister | Toshiko, Yasuo's sister |
 Ryōtarō MizushimaSohachi Maeda | Sohachi Maeda |
 Reikō TaniSoichiro, Sohachi's son | Soichiro, Sohachi's son |
 Kenji OyamaNot listed | Not listed |
 Akio IsonoIshida | Ishida |
 Tokuji KobayashiPatient A | Patient A |
| SShusuke KenPatient B | Patient B |
| NNagamasa YamadaPatient C | Patient C |