In Shanghai in 1940, I was Su Wan, the most disliked abandoned daughter of the Su family. She was kicked out of the house by her stepmother and could only make ends meet as a typist in a foreign company. I accidentally broke up the family's conspiracy to rob my grandfather's inheritance. I was framed by my stepmother. When I was desperate, I met the mysterious collector Lu Chengze. He handed over a contract: "Be my fiancée for three months, and I will help you get everything back." Lu Chengze seemed cool and gentle, but he had a decisive side. He helped me fight against my ruthless family and domestic servants, and protected me. As we got along, the coldness of the contract was gradually melted by the smoke. When the artillery fire of World War II approached, we worked together to overcome the difficulties. He knelt down on one knee in the flames of war: "Su Wan, the contract has expired. I want to sign a lifelong marriage contract with you."
