After their daring aerial search for the missing shrine maiden ends in a sudden crash, Yamato and Sera press onward through rugged terrain toward Filika's hidden lair. Along the way, Yamato's persistent urges prompt an awkward request for help from the innocent Sera, whose hesitant cooperation brings unexpected closeness amid the danger. Their path soon intersects with Filika and her controlled captive Nonoa, whose ominous orders force Yamato into a high-stakes bid to break the spell and protect his friend.