Vol4 Ch11: Yin Teeth Girl

Bart was feeling an extraordinary sense of self-importance. He had successfully fulfilled Lord Negary's orders to take over control of this Site, this meant that he had proven his abilities and his worth of obtaining more support from Lord Negary.

And this hypnotic ability as well, what a great thing this is.

Bart fully understood that the excuses he had used to persuade others had been nothing but ridiculous, but thanks to the psychological knowledge granted by Negary, he had been able to completely analyze and take advantage of the human heart.

Without any supernatural powers to protect the psyche, and given enough time for Bart to guide his target's thoughts, he could do literally anything to anyone else's heart, which his excuse of knowing the secret of the dome gave him plenty of.