Some of the letters are from fei's wife and some from yun's. . After reading the letters, zhuoran realizes that he's been lying to him. He says that when he first told him about fei, he was very grateful. He had just joined his new job and was known as a workaholic. His wife sent him a letter asking him to visit her, but he couldn't because he was working so hard. She wanted to let him read her letter when he came home, but when he did, he fell asleep. She sent him another letter asking for money, and when he didn't get his salary for a few months, she asked him to give her some money. She asked him why he needed it, and he told her that he needed the money because fei was his savior. He asked her why she needed money and she told him that she needed it because she was working hard. He said that she was not working hard enough and asked her to give him some more money