Whose apprentice is Taoist Gankun?

Master Gankun is a figure in the Three Prosperities of Zhang Chi in Thailand. In the 25 episodes of this TV series, Gankun met a brother and sister when he went down the mountain and took them as disciples. My sister is called Taoist Yin and Yang, and my brother is Taoist Gan Kun. Tai Zhang Chi Sanfeng is an action film jointly produced by China Film Co-production Company and Zhengdong Production Co., Ltd.