This book takes the warlords' melee as the background and tells the moving story of Su Qingyuan, a concubine from Jiangnan, and Shen Yanzhi, a young marshal from the Central Plains warlord, from a marriage of interests to a life and death relationship. In order to save the family crisis, Su Qingyuan was forced to marry into the powerful Shen family. When she first entered the Shen family, she faced difficulties from her stepmother, the family's calculations, and the alienation and temptation of her husband Shen Yanzhi. However, in crisis after crisis, Su Qingyuan relied on tenacity and wisdom to not only gain a foothold in the house, but also to face Shen Yanzhi frankly on a rainy night, breaking each other's defenses, and gradually moving from a transactional marriage to a sincere trust. As the struggle between the north and the south intensifies, crises inside and outside Shen's mansion are rife. Su Qingyuan quickly grew from a weak woman who needed to be protected to a comrade who could stand shoulder to shoulder with Shen Yanzhi. She outsmarted the special envoys of the Central Committee and skillfully dealt with all forces. When Shen Yanzhi was on the battlefield, she took charge of stabilizing the rear, raising military supplies, and even went to dangerous situations to escort supplies. And Shen Yanzhi also changed from a cold young marshal to a husband who fully trusted her and had unswerving love. He protected her from open and secret arrows several times in the smoke of war. In the face of brotherly rebellion, foreign enemy invasion, and ally betrayal, the two always join hands to tide over the difficulties together. In the end, on the eve of the decisive battle, Su Qingyuan became pregnant. She chose to go to the battlefield with Shen Yanzhi, vowing that the family would stay together no matter whether it was safe or smooth or a sea of fire. Like stars reflecting each other in the dark night, they will surely light up the road ahead together and protect their beloved homeland and each other.