A girl from the modern world is pulled into a brutal, ancient realm after opening a glowing ember hidden inside a mysterious book. She falls into a land ruled by barbarian kingdoms, dragons, and raw, untamed magic, where survival depends on strength and instinct. Found unconscious by Kirishima, a half-dragon wanderer, she is reluctantly accepted into the care of both him and Bakugo, a lone barbarian prince bound to Kirishima by a life debt. Though neither man lives as a companion to anyone, they agree to escort her through dangerous lands where myth and reality blur. As the three travel together across cursed forests, ruined cities, and wild, unclaimed territories, Y/N must learn to survive in a world that was never meant for her. Along the way, she discovers she may be tied to an ancient bond known as the “soul flame,” a connection said to link two fated lives until death itself. As survival forces the trio closer, the line between obligation, destiny, and something far more dangerous begins to blur.