In the "Inter-Middle Championship Arc," young magicians gathered from the all-management world compete for supremacy in magical battles! Mikaya, the Kenjutsu master of the Ten-Tou style, faces off against Miura from the Strike Arts Yagami family! Els, the barrier magician, takes on Harry, the bombardment champion! And as Nanoha and Vivio watch over, the long-awaited showdown between Corona and Einhart from the same school finally begins!! Who will emerge victorious in this clash of full power against full power…!! Additionally, a special chapter from Vita's perspective depicting the Yagami family, titled "The Knight of the Iron Hammer, Contemplating," is included!