Li Fang is a bottom-tier employee at Sanyuan Trading. After winning 1.3 billion in the lottery, she rises up to start her own business, taking on the industry giant Dingsheng Group head-on, and reshaping industry practices based on the principles of genuine materials, solid work, and clear accounting. After achieving success, she encounters a bizarre transmigration in an old alley, soul-transmigrating into the five-year-old ancient girl Lin Wan, and accidentally meets the city-guarding young lord Liu Yi. When the Shattered Star Pavilion attacks the city, Liu Yi's childhood sweetheart Xun Yue sacrifices her soul to forge the sword, and Liu Yi awakens his Demon Lord bloodline.