The Double Time Door: My Girlfriend Came from 1943

Jiang Yi never understood why Lin Nanyin—a childless, unmarried centibillionaire—would choose to marry him, let alone bequeath her entire fortune to him upon her death. That is, until the door opens across two eras, and the twenty-year-old Lin Nanyin from 1943 steps into his present-day life. As she carries out intelligence missions in war-torn Shanghai, Jiang Yi equips her with modern gadgets: pinhole cameras and micro-cameras for rapid blueprint sketching, stylish stockings and cosmetics plus sanitary pads for infiltrating the wealthy wives' circles, and instant food and medicine for tough battles. Armed with these supplies, Lin Nanyin navigates every peril with poise. In return, she unexpectedly helps Jiang Yi gain control of his business empire, making him unbeatable in corporate warfare. Their bond deepens through mutual care across time. One night, Jiang Yi's materialistic ex-girlfriend, who has long been harassing him, pounds on his door. "Who are you? Why are you in Jiang Yi's home? What's your relationship with him?" Lin Nanyin calmly replies, "I suppose... I'm his wife?" Jiang Yi ignores the intruder entirely and turns to his young bride: "Honey mini-version, if I donate ten DF-5C missiles, could I get a front-row seat at the military parade?"