When the oldest son fails in business and the younger son dies in an accident, Hyunwook unintentionally lives with his two daughters-in-law. Then one day, Hyun-wook accidentally sees a small daughter-in-law taking a shower, and since then, her daughter-in-law continues to look like a woman, not a family. Besides, the daughters-in-law who have been alone for a long time are also noticing Hyunwook…

Seok-joon has two sons; Min-seok, who is married, and Yoon-soo, who is not. Seok-joon tells them he is going to give allowance and his wealth to his daughters-in-law only. Yoon-soo asks one of his lady friends to get married for Seok-joon's money. Min-yeong and Yoon-jin pretend to be Yoon-soo's girlfriends. Then Yoon-jin falls for Seok-joon. The women visit the house often to get on Seok-joon's good side, and so does Yoon-soo's ex-girlfriend, Min-yeong. However, Seok-joon falls in love with Yoon-jin, and Yoon-soo is very disappointed in Seok-joon, who wants to start a new life...

Do-hee is alone in the house with her father-in-law as her husband is away on a work trip. One day, she sees him get bullied by his friends. Since then, she keeps thinking about his friend Yong-jin who looks strong and manly. Tired of being lonely, she seduces him. Yong-jin's body heats up for the first time in a long time and he goes to Do-hee's house every chance he gets to have a good time.

A housewife who has presenile Alzheimer's feels romance with a young man. She has hot intercourse with him and not her husband who embraces her rachet sex life and holds her with dear love. She feels physical pleasure and delight during intercourse that she's never felt with her husband before! Her affair with the young man starts like that.