It is the time of civil war. Zipangu is a country where people live together with gimmick warriors, a kind of super human robot. There, people and gimmick warriors struggle to seize power. Musashi, a Samurai gimmick warrior, departs to on a quest to become the best Samurai warrior. Musashi thrives in the series of battles, encountering with many heroes and villains including his lifelong rival, Kojiro, an expert swordsman. Later, Mushashi and Kojiro are sent by their General to escort the Princess, a granddaughter of the general. The princess is spoiled and difficult, so their journey becomes series of misadventures. Soon, they are caught up in a battle to seize control of the Country.

The story of the manga centers around Marimo Nogami, a usually quiet fourth-grade girl in elementary school. However, a certain incident leads to Marimo's personal strength blossoming.

The series takes place in ancient times, where people worship totems and several unique tribes exist. The highly respected Totem Warriors have utmost faith in their beliefs and protect their tribes. The protagonist, though not initially set to becomes a Totem Warrior, is eventually placed on that path. And thus, his adventure begins.

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