A Japanese period drama broadcast in prime-time in 1984, based on Goseki Kojima and Kazuo Koike 's manga of the same title.

Kainage Mondo is a secret child of Tokugawa Yoshimune and skilled swordsman. His job is a part to test food for poison for Yoshimune. He was on a journey but he goes to Edo to see Yoshimune.

The Owari han have longed for the post of shogun and try to murder Yoshimune, in order to get shogun's post. Fuki is a kunoichi of Kōka. She tries to murder Yoshimue but she comes to like Mondo and eventually starts working for Mondo and Yoshimune. Mondo protects Yoshimune's life from Owari han and other enemies.

八代将軍吉宗を守るために呼び寄せた、お毒見役・腕下主丞（かいなげもんど）の活躍を描く。主丞は吉宗が側室に産ませた子で剣の達人であり、また毒を見分けられる特殊な能力を身につけていた。毒殺を恐れる吉宗のために、主丞は自ら料理を作り、刺客たちの攻撃を防ぐ。だが、吉宗暗殺の黒幕は先代将軍の生母・月光院と甲賀忍者の頭領・甲賀大浄助だった。田村高廣・正和が兄弟で競演。原作は小池一夫・小島剛夕の劇画『乾いて候』。