A new chapter of the popular mother-in-law incest series starts here. Chisato and Reiko are each worried about their relationship with their son-in-law. One day, the two of them meet again at the counseling office they visited regarding their son-in-law. Reiko and Chisato-they were once lovers. As they talk, the two of them begin to feel the same emotions as before. A woman and a woman who seek each other even though they are both remarried. At that time, Hiroyuki, the son-in-law, sees a secret meeting of lesbians.
