Japan's Edo era gave rise to a clan of warriors with a highly specialized, magical talent. The clan was called the Manyuu, and the skill was the ability to deliver a sword stroke that could reduce the size of a woman's breasts. This may not appear to be a skill capable of wielding control over a land, yet in Manyuu Hikenchou, huge breasts symbolize prestige, riches, renown, and influence. The activities of the Manyuu clan's chosen successor, Chifusa, have caused grave alarm within the Manyuu clan. Chifusa, disgusted with the Manyuu's breast-obsessed culture, has not only abandoned the clan, but also taken the holy scroll that explains their procedures for growing and cutting breasts.