Ryutaro is a spy employed by the shogun Tokugawa Iemitsu, who is the target of assassination attempts that aim to hand power over to his younger brother Tadanaga.

Hiroshi Ogasawara
as Tone Ryutaro

Akemi Tsukushi
as Shino

Tetsuro Tamba
as Kurozumi Tenzen

Konomi Fuji
as Ofuji

Sachiko Tôyama
as Onobu

Yōichi Numata
as Shôgun Iemitsu

Masao Mishima
as Kagiya Jinbee

Unpei Yokoyama
as Tokubei

Kōtarō Sugie
as Yoshichi

Ureo Egawa
as Kawamura Utsubo