"Jiro Azuma is descended from of a long line of ninja, and he can talk to animals. One day, he rescues a unique black cat named Rago, a supernatural being, and is dragged into a mystical war. Inside the illustion generated by Fuyo, Jiro and Rago face off against a giant mononoke named Amagi. In the Edo period, Amagi attempted to recruit allies to fight back against the newly formed Oniwabanshu, but Rago refused to join him! What secrets lurk in the depths of Rago's lost memories?"--Back cover.
Shonen Jump manga.
Graphic novels -- Japan -- Translations into English.
Magic -- Comic books, strips, etc.
Ninja -- Comic books, strips, etc.