On December 31, 1968 (Showa 43), Manpyo Teppei (Takuya Kimura) once again set foot on the memory-filled Tamba Sasayama. There were only footprints of Teppei on the white snow. Two years ago, Teppei was still a promising entrepreneur. Hanshin Steel, which he ran, was technologically advanced, but it had no blast furnace and could not make pig iron by itself. It was restricted by the leading enterprise, Teppei, Teppei. With the ambition to catch up with the world's steelmaking level, Teppei was determined to make a blast furnace for his own company. Teppei's father, Manpyo Daisuke, was in charge of Hanshin Bank. However, the wave of financial reform was about to come, and Hanshin Bank was in danger of being annexed. In order to gain a foothold and save the family business, Daisuke did not hesitate to use his children's policy marriage to open up connections for himself. This gorgeous family has a glamorous appearance, occupying the power of the Kansai chaebol, and the mansion dominates one side and overlooks all living beings. However, there is an unspeakable secret of conversion in this luxurious mansion: the three beds in Daisuke's room and Teppei's striking resemblance to his grandfather arouse Daisuke's suspicion... As mentioned at the beginning, this is a story about the love, hatred and vengeance of a son who is willing to risk his life for iron smelting, a father who tries to survive the crisis of financial reform, and the gorgeous family led by the father.