The Azumi lived in content with happy Home, but came to want more radical stimulation for the night life with the husband. However, spent days not to have the courage to say it with the mouth, and to kick * in Masturbation for frustration. Be one day, and a masturbation act is peeped at by brother-in-law, Koji of the lodger. Koji threatens Azumi, and put it away as one's Sei Slave. Koji who noticed that a body of the Azumi is soft comes to require the Play which made full use of the soft body of the sister-in-law obstinately. Azumi is Sex with the husbands again, and the body reacts to a pleasant feeling not to be provided steadily…. The days of a forbidden immoral sexual act began in this way.