Momiji, an ordinary girl, learns of her lineage as a descendant of the esteemed Kushinada clan. Gifted with the unique ability to thwart the menacing Aragami, monstrous plant-like beings menacing Japan, she teams up with the TAC for support. Amidst this perilous journey, a potential romantic spark ignites with Kusanagi, adding a layer of intrigue to her challenging destiny.