Akari and her boyfriend move into a new apartment and start their lives. She was about to enter the house when she encountered her neighbor. He wanted her contact information and seemed to want to flirt with her. Her boyfriend caught him and scolded him. Little did the two of them know that he could use the "Mind Transfiguration Technique", which allowed him to swap souls with anyone he wanted. He used this technique with Akari to discover her beautiful body. Using her body to have sex with his body, she filmed her having sex with him to threaten Akari. After getting tired of his own aging body, he used Akari's body to have sex with her boyfriend...