Double Entrance Door in the Republic of China, My Girlfriend Came from 1943

Jiang Yi was puzzled: Why did Lin Nanyin, a billionaire who was unmarried and childless for a hundred years, marry him? Are you still giving away all your inheritance after your death? Until 1943, twenty-year-old Lin Nanyin appeared in front of him across the river of time, and the door between two eras opened! Need to quickly record drawings for a reconnaissance mission? Pinhole camera, micro camera, arrangement! Is it necessary to break into the wealthy circle for latent work? Stockings, cosmetics and liquid sanitary napkins are now available! Need supplies urgently for a tough battle? Convenient food and medicine are available when you need them! Jiang Yi armed Lin Nanyin with modern materials and calmly overcame all dangers in 1943! Lin Nanyin also unexpectedly helped him control the industry, making him invincible in business wars! The relationship between the two gradually warmed up as they favored each other across time and space. One night, Jiang Yi's money-worshiping ex-girlfriend, who had been harassing him for a long time, smashed the door wildly. "Who are you, why are you at Jiang Yi's house, and what is your relationship with him!" Lin Nanyin: "I'm probably... His wife?" Jiang Yi directly ignored the gold digger: "Dear wife, if I donate Dongfeng 5c, can I sit in the front row of the military parade?"