With Erza running the show, Irene took a step back to properly deal with Wendy. She undid the transformation and released all the other girls from Wendy's body so she could solely focus on the young girl. This time, she successfully enchanted herself into Wendy's body while Wendy's own soul was still inside, with nowhere to escape. Then, Irene enhanted her own soul into Wendy's own, merging the two together. Unlike before, Irene took her time nice and slow. First, she replaced Wendy's chest, then the rest of her body, and, finally, her face. Thus, With Irene's soul controlling both her mind and body, Wendy had now merged Scarlet Witch, becoming a new Irene. Her consciousness had been synched with Scarlet Witch, allowing them to inhabit the body as one being.
With she lifelong goal finally achieved, Irene decided to go on a short vacation. Having a proper body again, she did not hold back and enjoyed every minute of it. Afterward, Irene immediately went into trainning Wendy's sky dragon slayer magic and combining it with her own magic. With full access to Wendy's memories and conciousness, she mastered them in no time.