When Natsume Takashi inherits a book that belonged to his late grandmother he realizes the book is filled with the names of spirits she defeated and bound to her will. He then decides to return their names so they can be free once again.
Asako lives in Osaka. She falls in love with Baku, a free-spirit. One day, Baku suddenly disappears. Two years later, Asako now lives in Tokyo and meets Ryohei. He looks just like Baku, but has a completely different personality.
A war-hardened Crusader and his Moorish commander mount an audacious revolt against the corrupt English crown in a thrilling action-adventure packed with gritty battlefield exploits, mind-blowing fight choreography, and a timeless romance.