C1158 The Third Person
Lau Yiheng and Di Hongyan continued their study of the Song of Heavenly Goose. Primarily, it was Di Hongyan who assisted Lau Yiheng in perfecting his technique with the Song, especially in using it for attack. Yet, Lau Yiheng's occasional flashes of inspiration proved to be of great help to Di Hongyan.
Their bond grew stronger over time