The story of Hojo Yoshitoki, and 12 other lords who supported Minamoto no Yoritomo as he became the founder and first shogun of the Kamakura Shogunate.

Following the ascension to power of Taira no Kiyomori, the Minamoto clan is exiled. Minamoto no Yoritomo meets Masako, the sister of Hojo Yoshitoki and later marries her. Following this marriage, the gears of Yoshitoki's destiny begin to turn.—Drama-Otaku