From the ashes of Hiroshima rose a woman no one was meant to become. When the atomic bomb falls, twenty-year-old Asahi should perish with the rest of her city. Instead, she is reborn. With any physical exertion, her muscles grow stronger. Flesh tightens and hardens, and swells with a power that feels intoxicating. Heat coils beneath her skin. Deep, insistent hunger follows that is impossible to ignore. Power answers every movement, driving a transformation she neither understands nor can control. As her ruined city struggles to survive in the ashes of war, Asahi becomes both savior and a young mystery woman whose superhero-like strength makes her a symbol of hope. To others, she is a monster, too far removed from what a woman should be. But as her power grows beyond human limits, the life she longs for slips further away, especially the future she once imagined with the man she loves. Power carries a price, and it always takes more than it gives. And Asahi must decide what kind of legend she will become before the strength that saves her destroys everything she still hopes to protect.