According to the search results provided, there was no clear information that Ku He and Fan Xian had met in Joy of Life. Therefore, I don't know if they have recognized each other.

According to the search results provided, there was no clear indication that Ku He and Fan Xian had met in Joy of Life. Therefore, I don't know if they have recognized each other.
In Joy of Life, Ku He and Fan Xian had reunited. Ku He was an expert that Xiao En had found in the Northern Wilderness. They had searched for the temple together, but they had encountered a monster attack on the way. Xiao En had been pierced by the monster while protecting Ku He. Later, Ku He had been saved by Ye Qingmei. With Ye Qingmei's help, the two of them had practiced peerless martial arts, and Ku He had become a Great Grandmaster. Before Ku He and Xiao En died, they told Fan Xian the secret of the Temple. Fan Xian learned of his origins.
According to the search results provided, there was no clear indication that Ku He and Fan Xian had met in Joy of Life. Therefore, I don't know if they have recognized each other.
According to the search results provided, there was no clear information indicating that Ku He and Fan Xian had met in " Celebrating Years." Therefore, I don't know if they have recognized each other.
In Joy of Life, Ku He and Fan Xian did not recognize each other. Fan Xian had never seen Ku He before. He only knew from Haitang's body, Northern Qi's arrangements after the incident, and Xiao En's memories that Ku He was the Northern Qi Imperial Advisor. Thus, there was no clear information that Ku He and Fan Xian had recognized each other.
Fan Xian and Lin Wan 'er met in the eleventh episode of the TV series " Joy of Life." In the previous plot, the two of them had many misunderstandings and mistook each other's identities. Lin Wan 'er thought Fan Xian was Guo Baokun's errand boy, while Fan Xian thought Lin Wan' er was a servant girl of King Jing's manor. However, in the eleventh episode, Fan Xian disguised himself as a doctor to treat Lin Wan 'er. The two finally met again and knew each other's true identities. This scene resolved the misunderstanding from before and allowed Fan Xian and Lin Wan 'er to officially acknowledge each other.
In Joy of Life, Lin Wan 'er and Fan Xian met in the eleventh episode. Fan Xian had first met Lin Wan 'er in the Temple, and Lin Wan' er was known as the " drumstick girl." In the eleventh episode, Fan Xian disguised himself as a doctor to treat Lin Wan 'er. The two finally met again and learned each other's true identities. This scene resolved the misunderstanding from before and allowed Fan Xian and Lin Wan 'er to officially acknowledge each other.
Fan Ruoruo had taken Ku He as her master. Fan Xian had asked Haitang to persuade Ku He to take Fan Ruoruo as a disciple. His goal was to help Fan Ruoruo escape the marriage. Ku He believed that Fan Ruoruo had the qualities of kindness and intelligence, so he decided to take her as a disciple. Although the specific requirements for becoming a master were not mentioned in the search results provided, Fan Ruoruo mainly studied medicine at Ku He.
Fan Ruoruo was learning medicine from Ku He.
Yes, Fan Ruoruo had taken Ku He as her teacher to learn medicine.