He had half a plum blossom stitched on his cuff. When he returned, he carried the “tomorrows” of four women, writing them into the cracks of history. This is a wartime legend about protection and faith, about how a boy grew from a “wild child” into a soldier, and how a girl held fast to her convictions amid the flames of war. Open this book, and you will see a wild child who climbs walls like a cat meet a stubborn girl with plum blossoms embroidered on her clothes, on a street paved with blue-gray stone. They vow to protect the light in their hearts together, but are forced apart by the dark currents of a chaotic age. Years later, when war has burned their home to the ground, he has become a soldier moving through the smoke of battle, while she plunges into an icy river with her unfinished plum blossom. As the wheels of fate turn, hatred and redemption, betrayal and steadfastness intertwine in the smoke. Someone uses the warmth of a sunflower to warm half a withered plum blossom; someone else waits for their reunion amid blood and fire. When the map of Meihua Valley becomes a prize coveted by the Japanese army, they will finally understand: some bonds burn hotter than war and last longer than time.