Set in the 1950's, a Japanese Antarctic research exploration team and 19 dogs that accompanied the team are stationed at the Showa Base in Antarctica. After a year, the exploration team is ordered to withdraw from the Antarctic station due to severe weather conditions. The dogs have to be left behind. The following year, the next team arrives at the Showa Base station and a miraculous reunion occurs between a dog handler accompanying the new tean and two dogs, Taro and Shiro, that are brothers.

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.

A high-school girl inherits a declining yakuza organization, which seeks to repair its fortunes under her leadership.