Dean
Yao Wang after getting satisfied with the good time with those Ladies decided to get a lounch at that hotel for that night.
He payed for a room and went in, the next moment he was already in a cultivation state and in the next moment he was getting a breakthrough.
With those many yin essence from different ladies you wouldn't expect that all he would have will be just an increase.
Well, he was getting to the better level on his demon core which has left the infact phase, and the other phases and was now at the adolescent phase.
With a month or two of serious cultivation, he will reach the level where he won't have to worry about his demon core anymore because by then he would have already reached the adult phase which is the semi final stage of the demon core evolution.
Well, things was going well now with cultivation.
But not with what he have in mind to do, and now he has a pursuer from another race.