C56 Where gu qingyan went

After Xiao Yu left the library with the two books, he went to a place in the back mountain of the academy where no one was present and sat down cross-legged to cultivate the sword in his hand.

Xiao Yu had a lot of experience in sword arts, so even though the mental cultivation method of the sword in his hand was hard to understand, Xiao Yu still managed to barely understand a few words