Li Fuzhu and his maid, Lan'er, were eating barbecue in the back garden. They misfired the back garden. The queen mother was furious and wanted to blame Li Fuzhu. At this time, the maid Lan'er stood up and stopped the fault on her body, falsely claiming that she was looking for hairpins in the back garden, which caused the fire. The queen mother wanted to execute Lan'er, but Yun Yi came forward to intercede for her to avoid the death penalty, and finally gave Lan'er a heavy fine. Li Fuzhu looked at Lan'er who had been beaten up, feeling guilty, but Lan'er felt that Li Fuzhu had never regarded her as a person, but as a friend. For this reason, Lan'er was willing to go through fire and water for Li Fuzhu. Li Fuzhu was touched and said that they will be there from now on. They are good sisters. Ruan Qing sent a maid to ask Li Fuzhu about the progress of Ruan Qing and Yun Yi's marriage. In order to avoid Bier, Li Fuzhu hid in Yun Yi's room. Li Fuzhu and Yun Yi had a long conversation, and the two opened up and became close friends.