After Our Betrothals Were Switched, I Won by Leaning on My Sister-in-Law's Best Friend

【Seventies + Dual Book Transmigration + Military Marriage + Pregnancy Luck + Business + System】 Li Zhaozhao died of illness in her previous life, leaving behind many regrets. What she found hardest to leave behind was her best friend, who had always stayed by her side. She never expected that her best friend would transmigrate alongside her into a marriage-swap Period novel she had constantly complained about. There, they share the same name as two cannon-fodder supporting characters: the first only survives for two chapters. Her best friend becomes the sister-in-law she had been set up to marry, someone she had never gotten along with. She is the second cannon-fodder supporting character, who also only lasts two chapters before disappearing. Before Li Zhaozhao can even plan with her best friend to persuade the family to put all its money in their hands, how come her husband from the marriage swap is already offering it up himself? He’s giving her all the money and ration coupons? Her handsome marriage-swap husband, with his perfect six-pack, wants her to follow the army to Hainan? No way! She wants to make money in business with her best friend and set her sights on earning a fortune worth trillions!