Guo Jing
Zhou Botong makes his first appearance when the protagonist, Guo Jing, visits Peach Blossom Island, where Zhou Botong has been trapped for 15 years in the midst of a conflict with the island's master, Huang Yaoshi. He meets Guo Jing by chance, tells him about the history of the "jianghu" (martial artists' community) and the highly coveted martial arts book "Nine Yin Manual". He becomes sworn brothers with Guo Jing and teaches him two of his skills, the Seventy-two Styles Vacant Fist and Technique of Ambidexterity, and makes Guo Jing memorise part of the "Nine Yin Manual". With the help of Guo Jing and Huang Yaoshi's daughter Huang Rong, Zhou Botong resolves his conflict with Huang Yaoshi, and leaves the island with them.