Hikaru is a very beautiful female teacher with a huge bust. Nakata was seduced by her extremely seductive body. One day, he accidentally discovered that the homeroom teacher and another male teacher were secretly having an affair. Jealousy arose, and he wanted to possess this seductive body! Thinking and doing, Nakata drugged and took Hikaru to an empty room. He took over the body he had always desired and recorded it. Upon waking up, Hikaru helplessly let her student have her body. Not only that, Nakata also made the teacher witness the lovers giving oral sex to three students. Then he found a way to make the teacher resign. During this process, Hikaru realized that she herself seemed to be changing. She wanted to enjoy more sex, be more proactive when having a threesome with the students...