A bitter wanderer stumbles into a kid's suicide mission and becomes the weapon that child can't afford to become. The animation moves like ink bleeding through paper, all sharp angles and impossible violence rendered in a style that predates every Korean action film that stole from it. Munsu doesn't want to be a hero. He just can't walk away from someone who still believes in the country he's already mourned.
A bitter warrior named Munsu has been lost in the desert for days and can go no farther when a young man named Mon-ryon saves him. Mon-ryon hopes to serve as a secret agent for Jushin, a once-powerful nation recently destroyed, and to free his girlfriend Chunhyan, a natural fighter held prisoner by the cruel Lord Byonand. Without warning, Mon-ryon starts bleeding from the chest, mortally wounded by the Sarinjas, man-eating desert goblins. Munsu talks the creatures into sparing him in return for handing over Mon-ryon's body. Still doubtful of the young man's motives, Munsu takes up the mission he described anyway. Calling on the power of Angyo Onshi to summon an army of ghost soldiers, he frees Chunhyan, who then becomes his bodyguard. Together they set out to punish those who brought Jushin to ruin, in a fantasy action film.