Ketika Rei Okumori (Sota Fukushi) berada di kelas 3 sekolah menengah, ia membunuh ayahnya untuk melindungi ibunya Akiko (Honami Suzuki). Ayahnya secara fisik menyiksa ibunya. Mereka mengubur mayatnya di pekarangan rumah mereka dan membuatnya tampak menghilang. Sejak saat itu, mereka merahasiakannya dan tidak memberitahu siapa pun.
In this era where it's said that 1 in 3 couples get divorced every 2 minutes and 19 seconds, most of them negotiate their divorce matters together but the remaining get third parties to facilitate the process. However, about 2.4% of the couples who have to resort to a trial if the mediation process does not proceed as planned. The title of the drama comes from the fable "Kitakaze to Taiyo" which describes the leads who are lawyers with exactly opposite characters helping couples face off in court.
Attorney Kensuke Komikado (Masato Sakai) loves money, prestige & women, but also has a 100% winning rate when it comes to his legal cases. Machiko Mayuzumi (Yui Aragaki) is a rookie attorney who holds a strong sense of justice & passionate about protecting the weak. She is also awkward and rigid in her work.
One day, due to unforeseen circumstances, Machiko Mayuzumi begins to work at Kensuke Komikado's law office. The two attorneys constantly clash, but in the courtroom they cooperate to fight as one.