A sophisticated and elegant married woman, Mizukawa Aikizuna, aged 34. She lives on the 36th floor of a 40-story tower apartment in the heart of Minato Ward, with a view of the city center. Her husband is an IT entrepreneur, and they have one six-year-old son. In her twenties, she worked as a receptionist and met her husband. Their family seems happy, but since the birth of their child, they have been sexless. To distract herself from her loneliness, Aikizuna frequented the gym on the top floor, where she began to take notice of a young male trainer. As her desires grew, she decided to make her AV debut...