War reduced Japan to zero, and Godzilla plunged it into minus. Two years have passed since then, and the country has faced agonizing struggles to achieve recovery and finally reclaim its daily life. Just as humanity managed to cling to a hard-won peace, a new threat strikes, crushing hope in an instant.

After her baby brother is abducted by a murder of crows, Prue and her classmate Curtis stumble upon a secret world in the midst of violent upheaval—a world full of warring creatures, peaceable mystics, and powerful figures with dark intentions. And what begins as a rescue mission becomes something much greater as the two find themselves entwined in a struggle for the very freedom of this wilderness—a wilderness the locals call Wildwood.