乃木若葉は勇者である

Wakaba Nogi leads the first class of Heroes, girls handed divine power and paired with shrine maidens as the Vertex push what is left of humanity back onto one island. Three hundred years before Yuna Yuki's Hero Club, the line being held is the Shinju's, and Wakaba fights with the dead of that retreat behind her. This light novel is the franchise's earliest chapter, the era of the first Hero team on Shikoku.