In 1160, Kiyomori is finally granted the long-sought rank which equals to that of an aristocrat, and many within the Taira family also enjoyed promotions. Meanwhile, Shigeko, Kiyomori's sister-in-law, is offered to marry Emperor Nijo, but flatly refuses it. One day, the former Emperor Go-Shirakawa, who is on bad terms with Nijo, sees Shigeko in the Imperial Court and falls for her at first sight. Before long, Shigeko becomes pregnant with Go-Shirakawa's child, which throws the Taira family into chaos.
永暦元年、平清盛（松山ケンイチ）は、ついに武士として初めて公卿（くぎょう）の座につき、平氏は「平家」となる。一方、上西門院（愛原実花）に仕える清盛の義妹・滋子（成海璃子）は兄・時忠（森田剛）から二条帝（冨浦智嗣）へのじゅだいを勧められるが拒否。やがて内裏で出会った後白河院（松田翔太）と恋に落ちる。後白河院の子をみごもってしまった滋子に、清盛と平家は騒然となる。朝廷と平家の関係は？滋子の恋の行方は？
