In 1867, Kyoto. Ryoma Sakamoto who is a hero at the end of Edo era, had been killed during his secret conversation. However, a mystery group made him revive by magic.
The group, actually, is the secret association "Soryu-tai" that Kaishu Katsu directs.
Their mission is to find "Ryuzu" that scattered all over Japan which make the one obtain them to be a great king, taking them back from bad guys and to propitiate their power.
The time is limited for a year: this is a story of new Edo adventure that revived Ryoma would change the history!