Beginning of the 13th century, Western Xia state in Chinese mainland.
In those days existed a woman warrior named Shut Hell, the Evil One, feared even by the Mongols, reputed the strongest army in history.
At first she was just a normal Tangut soldier, but after coming close to death so many times she found a superhuman strength in herself.
On the other side Yurul, a young Mongol prince, is fascinated by the Tangut, his enemies' writing script, and is worried for their future…
Centuries later a Japanese high school student named Shudo is haunted by a vivid dream of a battlefield...
Is there some sort of bound between these completely different lives ? Will they manage to overcome the obstacles surrounding them ?

• 2012 Osamu Tezuka Cultural Prize (New Creator) winner