After spending a few days with Kazuma, Wiz finally decided to go back to her old job. However, due to Kazuma's personality taking root in her mind, Wiz started wearing more revealing clothes and became much more provocative towards customers. Vanir could see that she had fallen under Kazuma's control, but since Wiz's new personality had drawn in a lot of new customers for the shop, he led it slide.
At first, Kazuma only wanted have Wiz as a part of his growing harem, but very soon he had a better idea. With so much built-up lust inside of her, he could transform Wiz into just like him. Therefore, Kazuma ordered Wiz to visit him on a regular basis. He would have Wiz do things that he enjoyed and slowly adjusted her ways of thinking to match his own. Over time, Kazuma's personality inside her mind became more and more prominent. After a few more sessions, it had completely overpowered her own thoughts. With that, Wiz had become Kazuma's right-hand woman. The first thing that she did was playing her own body and enhanced it even more according Kazuma's preference, using magic to grow her already massive breasts to be larger than ever before.
Thus, the old Wiz, who would try her best to stop Kazuma from taking his possessions too far, had completely been replaced. Now, she was his greatest accomplice, willing to use her powerful magic powers to assist him in any way she can.