Mrs. Sei from the Maihara family moved in next door, running a massage parlor. Recently, I've been suffering from terrible shoulder stiffness and my wife and I went for treatment, but... When she found out during the treatment that I was a bit of a masochist, Mrs. Sei revealed her true brutal nature, and even with my wife right next to me, she quickly led me to climax. I thought going any further would be wrong and tried to avoid contact with her afterwards, but I couldn't resist her erotic skills and clever temptations. She made me cum multiple times. As she continued to make me ejaculate, my body and soul gradually began to sink into hers...