"The Fourth Mountain Lord's only personal disciple?" Su Xin was taken aback, a bit startled by the title.

Among the current six Mountain Lords of the Nine Sacred Mountains, aside from the Sixth Mountain Lord, the other five were ancient beings of immense power.

To be the personal disciple of such a supreme existence, and the only one at that?

"Su Xin, you might not know, but among the six Mountain Lords of the Nine Sacred Mountains, the Fourth Mountain Lord is the only female, and she has a rather eccentric temperament. She has been a Mountain Lord for over a thousand years and has only symbolically accepted a few named disciples, but never a personal disciple."