C510 Yin-yang Disorder

"This old one will remember this promise from ten thousand years ago and will never break it. Moreover, you ordered your Taoists to harm my disciple multiple times, so this favor is done for long ago! If he were to ask Fellow Daoist Qing Xuan one more time, how would the sword wither to explain? Dragon Shadow, what is my surname?

Qing Xuan indifferently stared at him. A long while later