Due to work circumstances, Masaki ends up living at his aunt Reiko's house. There was nothing wrong with it, but there was one problem. It was Reiko's overflowing sexual desire. Masaki spends his sleepless nights every day as Reiko's lewd voice immersed in masturbation every night. One day, she was confused by her desire to enjoy the limited current situation of women's prime, and one day, Reiko suddenly came in while Masaki took a bath. While Masaki is upset, Reiko plays with Takashi's erect cock...