Soma, a young boy, who had been accused by the King of the Heaven for supposedly stealing his sword. Heavenly beings along with Demons have been fighting for many generations for ultimate supremacy. The previous renowned wielder of this sword became referred to as King Pachun (who unknown to Soma is his father). The princess of heaven, and the General Winter join him on an adventure to retrieve this Blade of Heaven. Although it is revealed that Soma is the one who stole the sword, the blade later chose him as its new owner.