A Japanese salaryman finds his body transforming into a weapon through sheer rage after his son is kidnapped by a gang of violent thugs. A Japanese salaryman finds his body transforming into a weapon through sheer rage after his son is kidnapped by a gang of violent thugs. A Japanese salaryman finds his body transforming into a weapon through sheer rage after his son is kidnapped by a gang of violent thugs. A Japanese salaryman finds his body transforming into a weapon through sheer rage after his son is kidnapped by a gang of violent thugs.