This drama tells the story of the Oushu Fujiwara clan spanning generations, 140 years in the late Heian era. They established their domain in Touhoku area (North-east area of Japan), independent from the rule of Minamoto clan.

The drama tells the story of the Sanada family. Originally serving the Takeda Clan they ruled the northern district of Shinano. The story begins right after the death of Takeda Shingen, continues through the rise of Tokugawa Ieyasu who founded the Tokugawa shogunate and covers roughly the period 1580-1610.