Seven nations exist in the Central Plains, competing for hegemony for ages. Among them, the military state of Gen continues to invade other nations with overwhelming force. Fifteen years ago, the Battle of Kokuya broke out between Gen and Rei. Forty thousand surrendered soldiers were buried alive in a massive valley under the general's order to "let no one live who might become an enemy again." The screams lasted for seven days and nights, and the valley became a cursed land known as "Kokuya." Only two people miraculously crawled back from the earth: Guest and a boy named Jin. Fifteen years have passed. Gen has expanded its power further, nearing the unification of the world. However, behind the scenes, Gen officials and soldiers are being brutally murdered in succession. People fear the culprit as the "Grave Wraith," whispering that it is the work of a vengeful spirit.

The Dead Army

Jin became a general of Rei and organized the "Dead Army" by gathering those who harbor a grudge against Gen. Driven by hatred, the soldiers of the Dead Army will rise again by sheer force of will even if their limbs are broken or their vitals pierced. It is a gruesome, maddening army.