Great Master Wu Yin was so angry that his face turned black and he glared angrily at Bai Zhongtian. "I don't believe that you have the ability to nurture such a disciple. Do you think that I'm unaware of your capabilities? Even if this girl had become your disciple from the beginning, she has now far surpassed you."
Bai Zhongtian agrees with the last part of that sentence. Gu Ruoyun's achievements have indeed greatly surpassed him. However, that does not mean that he was willing to admit defeat in front of Great Master Wu Yin.
"Hehe," he sniggered in ridicule. "Regardless of the height of this little girl's achievements, it does not change the fact that she is my disciple. The greater her abilities, the prouder I, her Master, will be. As for you... You can slowly enjoy your jealousy. You will never find another genius like her, not even in a hundred years."
No one else knows better than Bai Zhongtian of Gu Ruoyun's greatness.