After the last possession, Yunyun, not wanting to get possessed by Kazuma again, decided to keep her distance for the party for a while. One day, she was visited by Wiz. Although initially happy to see her, Yunyun soon noticed that there was something wrong with the kind shopkeeper as Wiz kept pushing her to participate in another possession. In truth, Kazuma had taught the possession skill to Wiz and asked her to track down Yunyun. However, despite being skeptical, Yunyun eventually gave into peer pressure and agreed.
Soon after the possession process had started, Yunyun felt Wiz's essence entering her body, filling and stretching it. She grew taller, bustier and more mature. The feelings that came along made it harder and harder for Yunyun to focus and Wiz's consciousness soon took over control. She took one look at their fused body and let out a soft sigh. The body, although beautiful, did not quite lived up to her own expectations. Therefore, before the possession was complete, Wiz casted a spell on their fused body, causing their already huge breasts to double in sizes. Satisfied, Wiz decided to bring her new body back to Kazuma to have some fun.