I first met Natsuko, my wife's best friend, in April when the cherry blossoms were beginning to fall. She had come to me for advice after confiding in my wife that her own husband was cheating. One day, she suddenly showed up at our house while my wife was away. Soaked in the rain and clearly drunk, she insisted on being let inside. Flustered, I tried to guide her to take a bath, but she became dizzy from the heat and passed out. Panicking, I carried her into the bathroom, and seeing a woman's body so close—someone other than my wife—for the first time in ages, I felt an uncontrollable surge of desire welling up from deep within. That moment forced me to confront my own hidden emotions.