The Satake family is a distinguished family. The third-generation head of the family, Yumiya, is adopted and has close relationship with his sister.
| Actor | Role |
|---|---|
| MMichiru KinoshitaMichiru | Michiru |
 Seiji NakamitsuYumiya | Yumiya |
 Yuuri SunoharaSango, Yumiya's younger sister | Sango, Yumiya's younger sister |
 Hiromi SaotomeHydra's companion | Hydra's companion |
| RRio SerizawaSon in-law's wife | Son in-law's wife |
| KKanichi HiragaSakota, legal advisor | Sakota, legal advisor |
| JJunk SaitoHydra, Satake's friend from college | Hydra, Satake's friend from college |