C269 Who will Comfort Me

"Dad, did you hear what I just said clearly?"

After leaving the village, Long Tian Xing talked to Long Yun Fei about the fifth seal of the Heavenly Doctor.

I understand, Tian Xing, the fifth restriction of the Heavenly Doctor is something my Long family cannot cultivate to this realm, and I am not very clear on it either. As for what you meant by 'materialize into nothingness