In which episode did the old Pearl Ge Gelian appear?

The Story of Princess Zhu Huan 1 Episode 18

Yongqi and Erkang accidentally bumped into Gan Long who woke up. He held Wei Zi's hand. They were scared and left the room, afraid that Gan Long would have feelings for Wei Zi. Er Kang was about to rush into the room and tell Gan Long the truth. Thanks to Yongqi's stop, Wei Zi later told Erkang that she had successfully aroused Gan Long's impression of her mother Yu He and him. I believe that soon, she will be able to show her identity to Gan Long, and Erkang has only slightly calmed her uneasy mood. A group of people went to a small town and saw a woman picking lotus by the roadside saying that she would sell herself to bury her father. She was bullied by local bullies. The swallow was so keen that he naturally stepped forward without thinking and beat the gang away. Yongqi saw that picking lotus was lonely, so she gave her some money and asked her to go to Beijing to find relatives. Unexpectedly, picking lotus flowers followed Yongqi and his party all the way. Yongqi couldn't bear to see it, but only temporarily took in lotus picking. The swallow was so jealous. Helpless, because the swallow is used to gruffness at ordinary times, he can't pull his face down to explain his feelings to Yongqi, but he is cynical about Yongqi. Yongqi, who was highly respected since childhood, could not help but talk back impulsively, and the two young people started the cold war. The swallow was heartbroken and couldn't help crying. Yongqi was frightened and regretted it. Just when Yongqi wanted to apologize to Swallow, Swallow turned over and rode out.