Lu is a businessman. Known as the "number one scholar" by Shanxi counterparts. Having taken a fancy to Qiao Zhiyong, a promising young man, he began to do business with the jstars and knew that Qiao Zhiyong was a lover. For the sake of her daughter's love, Liu Dake not only investigated the business background of Qiao's family, but also investigated the landlords who never borrowed money, and even promised to borrow 302,000 pieces of silver from Qiao's family to revitalize Baotou's business. Ruda can buy and sell a promising young man as a son-in-law. This is because he realized that Lu is not a strange commodity. In the eyes of businessmen, his eyes are full of interests. Running the bankrupt jstars is actually a risk-free operation. It is conditional for him to borrow money from Liu Dake, and it is his jstars' business to take all the shops in jstars as collateral. If the Qiao family loses, the house belongs to his old Lujia family, that is, it doesn't need to be taken back, so that the son-in-law can live, and the daughter has more face and status. If the jstars are ready, it is the life-saving money borrowed by the old father-in-law, and the daughter still has a face position in the jstars.

Lu is an old man and an old hand in business. He has interests and affection in his eyes.