Five years have passed since Kuryu Kohei's transfer from Tokyo to Ishigaki, and then to Sapporo. He ends up in a small town of Nijigaura in Yamaguchi Prefecture. There, he investigates a murder case involving a local enterprise, Kamoi Group, and the people related to it. Everyone in town thinks he's innocent except Kuryu, whose unorthodox investigation methods perplex not only the townspeople, but his colleagues as well.

In 1924 Yuri killed 57 people as a spy before going underground as the madam of a small brothel. There, she encounters an orphan whose family was murdered and holds the key to finding a large sum of money reported missing by the Imperial Japanese Army. But with an army of soldiers after them, they must fight to survive.

In Kyoto, Mayuko (Haruka Ayase) stands at a crossroad in her life. She's thinking about marriage with her boyfriend Kyoichi (Hiroyuki Hirayama). By an accidental opportunity, Mayuko stays at Honnouji Hotel. There, she meets historical figure Nobunaga Oda (Shinichi Tsutsumi) who is attempting to unify Japan.

In a time when the main source of energy was still coal, there was a man who saw the future in oil. Young Tetsuzo Kunioka who hails from Moji, Kitakyushu, rides out into the oil business, but is faced with numerous challenges and competitors who stand in his way, including domestic suppliers and major western oil companies, or the "oil majors". But Tetsuzo never gave up, however despairing the situation was. He always found a way and paved a new road with his unconventional ideas, eccentric actions, and most of all, his caring heart toward his own men. That style of Tetsuzo's was not something that would ever change, even when the tides were against him in a war-lost Japan.

A hustler who gets in trouble with a gang boss in the port town of Sukago agrees to make good with the don by putting him in contact with a mysterious hitman — an assassin the hustler has no idea how to contact. Instead, he hires an actor to play the role, though the thespian has no idea what he's getting into.