結城友奈は勇者である -鷲尾須美の章-

Three sixth-graders carry the Taisha's mandate: Sumi Washio at the bow, Sonoko Nogi firing rounds that change shape, Gin Minowa swinging axes taller than she is. Their target is the Vertex, which keep descending on the Shinju, the divine tree whose barrier keeps Shikoku habitable while the rest of the world is gone. Between battles there are still classes to sit through. This manga covers the Washio Sumi Chapter, set two years before Yuna Yuki's Hero Club.