Jade and Rachelle, estranged half-sisters bound by their parents' turbulent history, reunite when their zoologist father vanishes without trace. As a geologist investigating Mt. Aria's dormant mysteries, Rachelle recruits Jade for her research expedition, seeking answers about a cryptic map discovered among their father's possessions—one that points to a fabled kingdom where animals speak as humans do. Is this legendary realm real, or merely the delusion of a fractured mind? The truth lies hidden within Mt. Aria's depths and in the knowledge of Theo, a native guide whose connection to the mountain runs deeper than anyone realizes. When Jade pursues these answers, she awakens in an unexpected fate: transported to another world, inhabiting the body of a noblewoman destined to marry the formidable, emotionally distant future king of Reino dela Tierra. Now caught between two worlds, Jade must navigate a marriage of political consequence with a man whose icy demeanor conceals untold secrets—all while uncovering whether the impossible kingdom from her father's map truly exists.