In Tianjin Guards in the 15th year of the Republic of China, Shen Qingyuan, a foreign medical girl, broke out of the Shen Mansion to escape from the warlord's engagement, but was assassinated in a black market alley - the person she was chasing was her fiancé, Xiao Jinghan, the marshal of the Xiao family who was being chased. A gun battle bound the two of them, and she was forced to sign a marriage contract. However, she unexpectedly discovered that the magnolia pendant around her neck had the same origin as Xiao Jinghan's mother's token, which also led to the suspicion that her mother died of a "sudden illness."
Secret fights in the house and sieges in business wars followed one after another. Zhao Manyun's opium trap, the secrets of the Shen family's medicine warehouse, and the suspicion of Xiao Jinghan's murder of his father were intertwined. From the suspicion of a forced marriage, to the joint efforts to uncover the mole and solve the conspiracy of collaborating with the enemy; from the misty warlords fighting in Jinmen to the raging war in Songhu, Shen Qingyuan gave up his pampering and used medical skills to save lives and wounds, and Xiao Jinghan shed his coldness and raised his spear for his family and country. When the flames of war tore through the mountains and rivers, their love was tempered in the conspiracy and gunpowder smoke - should they join hands to protect their country, or should they die for each other? The secret of the magnolia pendant will eventually reveal the grudges and beliefs of two generations.
