This is a secret memory that you will never forget. Her husband's best friend, Kameda-kun, came to Tokyo for her work and ended up staying at our house for a week. When I met him for the first time in a while, he was kinder, stronger, and more manly than my husband. That day, when Kameda-kun accompanied me shopping on behalf of my husband who was busy with work, we suddenly became close. Even though we are tormented by guilt, we are unable to suppress our burning desire...