Haru has an excellent sense of taste and surpassing skill in the kitchen, but she has been divorced from her first husband after only a year of marriage because of her impetuous character. One day, Haru is proposed by Dennai Funaki, samurai chef from Kaga, to marry his succeeding son. The Funaki family who has served the Lord of Kaga not with the “sword” but with the “kitchen-knife” is well known as “Kitchen Samurai” for generations. However, now, her new husband Yasunobu wields a kitchen-knife with no skill at all. In order to save the family name Funaki and its position as kitchen samurai, Haru decides to teach him the art of cuisine... The story is inspired by a real-life family in Kaga that has survived countless upheavals with its cuisine.

優れた味覚と料理の腕を持つが、気の強さが仇となり1年で離縁された春（上戸彩）は、加賀藩の料理方である舟木伝内（西田敏行）にその才能を買われ、息子の嫁にと懇願されて2度めの結婚を決意。舟木家は代々、藩に仕える由緒ある包丁侍の家。
しかし、夫となる跡取りの安信（高良健吾）は料理が大の苦手、しかも4つも年下！！
春は、姑の満（余貴美子）の力も借りながら、必死に夫の料理指南をはじめるが…。