Zavier was an unremarkable suburbanite living just outside of Seattle. He was finishing up his final semester of high school and preparing to go to college despite a nagging lack of excitement for his future.

In the blink of an eye, his life is thrown into chaos when Zavier meets a young man from an alien world named Yafu. Yafu has accidentally been thrown to Earth via portal while chasing the dangerous Poison Fang cult on his world. These two boys quickly come into contact with Arigo, a mysterious and powerful defender of Earth from various interlopers from Yafu's world, known as the Biterrain. When Arigo discovers that Zavier was used as an unknowing and seemingly impossible vessel for the Fang to try to invade Earth, Arigo decides to send the two boys, along with his faithful assistant Anenna, to the Biterrain for answers on Zavier's anomalous condition.

In this new and dangerous world, Zavier weighs his own feelings of personal inadequacy against the backdrop of his sudden and mysterious importance. Meanwhile Yafu struggles with the limits to his thirst for vengeance and ultimately his future without it. Finally, Anenna must begin to confront a new identity as the last parts of her old one abandon her.

In the background of their journey is the mystery around the Immortal King, the mythic founder of the Biterrain's dominant religion who allegedly disappeared to Earth many millennia ago. Despite the planet being central to the dogma around their messiah figure, Earth has been relegated to myth and conjecture by the general populace of the Biterrain due to their inability to validate its existence in the present time. How will Zavier navigate in a world where he holds its holy grail within his own identity and who can he really trust in a world of such contrived obliviousness?