Lin Qianran thinks she is exceptionally capable. One day, she transmigrates into the body of a pitiful young lady, gaunt and starving. After five years of enduring hardship, the once bony, shriveled girl blossoms into a lovely, bright-eyed young beauty. And she has quite a fortune of her own: grain shops, taverns, pharmacies, cloth shops. She has a hand in every trade, and her name rings out as if gilded. But even someone as capable as Lin Qianran meets her greatest adversary: that black-hearted, smiling fox, a master of hiding a blade in a smile and a needle in silk. Time and again, he drops her into trouble while keeping himself spotless! Furious, Lin Qianran swears to the heavens that she will never let this smiling fox off the hook for as long as she lives! And then they really do spend their whole lives entangled, with no end in sight... Lin Qianran regrets it. It seems she shouldn't swear so carelessly. What if Heaven takes her at her word?