Yui Yui Yasaki is 36 years old and is a working caregiver in her 10th year of marriage. When she was little, her grandfather was very kind to her, which led to her preference for older men. Her current husband is 57, soon to reach retirement age. They are a couple with an age difference of 21 years! They have had a child and seem to be living a happy family life, but recently she has been dissatisfied with their sex life. "My husband hardly gets hard anymore...I mostly do it myself these days." Read on to see the wife's determination in her 10th year of marriage to try having sex with younger men from now on.