Hunting Players-2

"STOP!" the woman once again yelled, making Arun come to a stop. Continuing she once yelled once again, "STOP MOVING. JUST STOP." He did what she said.

Arun could not understand what the hell was going on here. He knew that he wanted to kill the lady, from the bottom of his heart. Yet, whenever she would yell stop, his body would stop. His brain would tell him that a woman with an enchanted voice like her should not be killed. And for the sake of her beauty and humanity, he should listen to her.

But at the next moment, his brain would flip on its decision from earlier. It would then tell her to kill the bitch where she stands, and just be over with. This time as well, he stopped for a few seconds after he yelled, but then he started running after her again.

Why is she not running? And what kind of power does she have, which could make me obey her?