C309 Difficulty(part Ii)

"Hehe, I knew you would ask me. Xu Qing isn't Elder Xu, but he has a special relationship with Elder Xu. He is Elder Xu's adopted son. The name on the stone tablet was the highest rank among all the students who had challenged the Tower of Trials in the past 20 years. It refreshed once every 20 years.

Xu Qing could be said to be the strongest student in the history of Martial Cultivator Union