It's a brand new day at Mount Kamigami and the feisty Onari preps for the first day of school — where she will learn her powers for the challenges ahead.

With a newfound sense of purpose, Onari tells her classmates how she'll beat the Oni. Meanwhile, an unexpected guest arrives at Mount Kamigami.

When Naridon's secret comes out, Mount Kamigami falls into utter chaos. Hurt and hopeless, a crestfallen Onari finds an unlikely kindred spirit.