Far in the future, on a world ruled by myths, machines, and the long shadow of ancient wars, the Earth's last human awakens underground with no memory. Determined to find answers, Owen and a group of robotic allies journey through a glacial wasteland only to learn that a mysterious machine is hunting humans. Old prophecies nevertheless hope for humanity's return, the restoration of the environment, even the reestablishment of some peaceful utopia.
But amidst this chaotic world, Owen faces an even more personal struggle of being misgendered, deciding finally to transition to her affirmed gender, aligning with her innate female identity, and ultimately, giving herself the new name, Gwen. Her troubles, however, are hardly over. As the weather turns more deadly, her enemy prepares one final attack, not only threatening humanity's legacy with total destruction, but all remaining life on the Earth with extinction.
Fifteen-year-old Owen awakens deep underground and with no memory before a sudden flash of light hurls him into visions of bronze-age battles and warrior kings. Armed now with an ancient heroic code, but feeling very uncomfortable in his own skin, he journeys through a glacial land covered in clouds, searching for his people and for a more authentic sense of himself.
After a harrowing journey through a frozen wasteland, Owen reaches the mythic city and even found a body she can call her own, but as the ice age ends, old enemies begin preparing for war. The time comes to gather allies to defend the legacy of her people, but a new download into her memory forces her to question everything she thought she knew.
At the edge of all the legends, Gwen takes a new name and finds herself in a whole new story. Separated from her friends, she continues her journey alone to stop the sun from scorching what remains of the world, but the one who calls himself King is closing in with secret weapons and a relentless fury now eager to watch everything burn.