Lin Feng was slightly surprised to hear all of that. It wasn't new for him to hear about such cultivation techniques, and in fact, most Yin Dao cultivation techniques had similar requirements of purity.
His own master and aunts used to cultivate similar technique.
As for the drawback, to be honest, it couldn't really be considered a drawback since cultivating Yin and Yang always increased lust in the practitioner. His own Pure Yang Physique, which was a top-tier constitution, was quite a good example of it...
"Senior, is it really alright to tell me that?"
He already knew that Elder Yin had a good relationship with his master, but this information was still a secret, and according to her, not many people knew about it.
"It's alright. The reason I told you about it is that she would definitely approach you in some way, so it's better for you to know that she isn't truly uninterested in men, or who knows how you might fall into her trap.."
