- The Powder of Iron - "Please, Menou... execute me." The 'Salt Sword' possesses the power to turn everything into pure salt. Targeting this sword, which is sealed at the western edge to kill Akari, Menou and her companions encounter the steel-armed nun Sahara in the vibrant desert. Although she is someone Menou knows, for some reason, she requests her own execution───. Meanwhile, in the eastern unexplored territory, the 4th genius 'Puppet World' begins to stir. The pure concept 'Vessel', which they couldn't completely eliminate, approaches Menou and her companions. A world creaking under the weight of regression. Menou and Momo, entangled around Akari, and the sorcerer 'Azirangi' begins to move───. The scorching third volume where fates intertwine in the midst of hot sands!