Power plays become blades, and conspiracy a cage, trapping Shuang'er in an endless storm. The one she loves is driven by the world into madness and obsession, while a powerful enemy imprisons her in a frigid dungeon and torments her mercilessly. She escapes death, only to forget the unforgettable past she shared with Yu Qiao. They meet again and fall for each other anew, but memory keeps cutting them both like a blade. One after another, her dearest friends make the ultimate sacrifice, and the prophecy comes true. When peace finally returns to a war-torn world, all that remains is a land strewn with farewells and eternal loneliness.