Ji-eun, a Korean female college student who came to Japan to study, works part-time at a convenience store to pay for tuition and living expenses. The friendly store owner invites Ji-eun and Min-woo to his house. Ji-eun and Min-woo are forced to suffer between their mistress and her lover. From that day on, the mistress torments Ji-eun by revealing her true nature. Min-woo, who is worse than her, drags Ji-eun out of the convenience store and falls in love with her again.
Saryu runs a bar, and after her husband's death she ends up with his friend Tanaka, who was by her side to comfort her all along. Then one day, a Korean man named Min-gyu comes to the bar, and Saryu feels like she can open up to him, because he looks just like her late husband, Haruto. Min-gyu goes to her house one day and understands why she likes him after seeing Haruto's picture, and feels dear for her. Meanwhile, Tanaka, who is currently with Saryu, desires perverted things from Yui, who works at the bar... He tells her he killed his friend Haruto to have his wife. Yui takes revenge on Tanaka, as she thinks fondly of Saryu.
Dong-hoon is a detective who only has eyes for his foster daughter Yoon-ji. However, she's unemployed and only likes to party. One day, she brings her friend Hye-ri home. Hye-ri doesn't leave and acts as though she lives there, even bringing her boyfriend into the house for some adult playtime, tempting Dong-hoon.
Jang-hyeon is in the leasing business and he lives with his son Byeong-cheol. One day he gets a call from his daughter-in-law in the States that she's coming to Korea for a while and will be staying at Jang-hyeon's house. Jang-hyeon goes to pick her up from the airport and Byeong-cheol calls his girlfriend for some mature fun, but the daughter-in-law walks in.
The secret story of the sexiest and youthful sisters that can not be revealed! The confidential secret of the boyfriends who reveal is revealed. He is a sister. Sukyoung is between Sangwoo and Jinhee and loving each other. The two of them talk about their lover, and when they accidentally find out that their boyfriends are high school alumni, they ask about her sister's boyfriend ...
The gentle gesture of the three sisters surrounding the male housekeeper begins. The three sisters are not the food of the housemaid but the housekeeper's body.
Sang Woo and his sibling Wan Jin come to his home with a drunk new employee In-hye after a company dinner. In Hye can't get up the next day. Sang Woo asks his younger brother Wan Jin for help and goes to work first. In Hye, who woke up late, heard about yesterday's situation from Wan-jin and went to take a shower to go to work, but she collapsed because she felt dizzy.
