该剧讲述了日本战国时代,女城主井伊直虎以男儿之名继承家业,为井伊家的生存、兴旺而奋斗一生的故事。 井伊直虎(平假名:いい なおとら,1536?—1582年),别名次郎法师,法号祐圆尼。是日本战国时代的女性领主。远江井伊谷(静冈县滨松市(旧引佐郡)引佐町)的国人井伊氏当主,有“女地头”的称呼。与井伊直亲有婚约,但终生未婚。是“德川四天王”之一——德川麾下名将井伊直政的养母。During the Sengoku period, the Ii family governs the Totomi region. Due to many past wars, there are no more male successors left to become a lord. Naotora Ii ((Kou Shibasaki), the only daughter of the lord, now becomes a lord. She faces a difficult period. The constant love from her fiance, whom she became engaged with at a young age, helps her to keep moving forward.