College Girl's Red Diary

Mi-jin, who is starting a married life that marks a new start, has one concern. She says that she has no sex drive herself. Mi-jin finds massage with the help of her friend. That day she discovers that she is also full of libido.

Matsutaro runs a small movie theater, but due to the recession, it is not very popular. His wife Junko lives separately from him because he is impotent, and runs a video shop. One day, a young woman named Mirai attempts suicide in the movie theater. Mirai regains her strength and starts using the massage techniques she learned at the soapland to cure Matsutaro's impotence, but...

Hye-kyeong enters as housekeeper of Soon-sil and Jeong-seop. Hye-kyeong accidentally found out that she is in a religion like Soon-sil! Using a sense of belonging to Soon-sil, she attracts his lover Tae-bong. Meanwhile, Soon-sil is possessed by Tae-bong, and Soon-sil's husband, gangster Jeong-seop, falls for Hye-kyeong. Hye-kyeong, Jeong-seop, Soon-sil, and Tae-bong use their minds to take over each other.

Yeon-i who runs a small salon is shaken by Geon-dal’s suggestion to run the salon as an adult service business when customers start to run out. After experiencing the sales method that enables customers to touch female employees while being shampooed and while receiving other services, Yeon-i leaves the salon, but after a few months, she suffers from living difficulties and visits Geon-dal again

An unemployed man who lives off his wife's earnings soon falls head over heels for his rude and haughty sister-in-law. He coincidentally witnesses her having sex, but soon gets caught and gets himself in trouble... His plan to bring her into submission begins!

Kyung-soo and Eun-ji are married due to their parents' business. Eunji is sad and depressed because her husband's love is not married. Meanwhile, Gyeongsu meets Yeongju without a wife and has an affair. One day, Eun-ji's boiler broke down at home, and she called an AS engineer. He meets Jung Hwan, who was a lover before marriage. The husband goes out of the hotel saying he sleeps at the hotel until the boiler is repaired, and Eunji and Junghwan get hotter after thinking about it...

Min-ho and Jeong-il end up working with each other's wives one day. As time passes, the men feel attracted physically to their friend's wives. In the end, Jeong-il suggests to Min-ho, "Let's not take sides and just be happy as the four of us!" They start swapping each other.

The youngest sister Miyo is an illustrator but she is a shut-in. She does not socialize with anybody. The middle sister Mizuki is working at a bar. She gives all of the money she earns to her boyfriend, who is actually married. One day, the oldest sister Hoshimi, who is a painter, returns home. Hoshimi brings different men to the house, and has sex with them. The two younger sisters are thrown off by her behavior, until they find the reason for Hoshimi's frustration.

An elevator lady who uses her body to earn more money. She falls for a wealthy married man without her knowing that this will soon lead to her downfall.

On a rainy night, the lights in the windows of the apartment complex go out one by one. Chiaki Onda (Junko Miyashita) was waiting for her husband, Hajime (Akira Hanagami), who came home late tonight. Dinner is cold and the children are already asleep. A rift had already formed between Chiaki and Hajime, and sex was nothing more than a means of fulfilling Hajime's sexual desires, and there was no joy in it. An attraction to her classmate's driver awakens...

After the death of his wife, Jong-Sub (Kang Shin Sung Il) raised his son alone. He lost his son in a car accident. Since the death of his son, Jong-Sub lived all alone. He retired from his job as a principle. Jong-Sub is then diagnosed with colon cancer and learns he has only 6 months left to live. All his desire to live is gone, but he still wants to keep his dignity. Jong-Sub tries to hire a caregiver. A woman named Yeon-Hwa (Bae Seul-Ki) comes to him. She is beautiful, but looks sad. Watching Yeon-Hwa, Jong-Sub sees his dead wife. He is shaken by her and wants to live more with her. Jong-Sub realizes he loves her and faces a truth he can't believe.

After Jae-won goes back to school, he can't find a place to stay so he ends up renting out a room in his mother's friend Hee-jae's house. Hee-jae's daughter Yoon-young has grown up to be a mature young lady. One day, Yoon-young uses school exams as an excuse to stay over with her boyfriend and Jae-won brings his girlfriend to the house. Hee-jae thinks something is going on and interrupts. Meanwhile, Yoon-young is not entirely happy with sex with her boyfriend and has other thoughts when she sees Jae-won. She starts seeing him as a man. In the end, she calls him to her room in the middle of the night...

Unable to adapt in the United States, Yuri decides to stay at her mother's friend's house, fighting with her son Hyun-Bo as a child and being like an enemy. Hyunbo and Yuri, who met over time, have a crush on each other. One day, Hyunbo witnesses her girlfriend's affair, and it hurts her heart. Yuri who comforts Hyunbo... Yuri and Yuri who become lovers from enemies!

Melissa is a fetish model who realizes that she had taken the wrong path. Modeling was to pay for college, but it became her career. She tries to convince a director to forsake exploitation films in favor of returning to his artistic roots.

Seol-ah is having a small party to celebrate her 100th day with her boyfriend Do-jin. As the party went on, Seol-ah suddenly fainted and collapsed. Do-jin tampered the drink with a drug. Do-jin invites his friend Dong-joon to film him sexually harassing a dejected Seol-ah with a camcorder. Seol-ah, who opened her eyes the next day, is shocked and tries to escapes the house when she sees Dong-jun lying next to her, but is forced to have sex with Do-jin, who has changed 180 degrees. Seol-ah, who later felt violated by Do-jin and Dong-jun, decides to leave for Japan.

Is it a bad thing to have and like a lot of sex?' A woman with paraphilia is locked in a white room. In that room, the woman opens up about the turbulent sexual experiences she has had so far... Her paraphilia started from a trauma she had as a child As she becomes an adult, she is transformed into a form of sexual intercourse beyond imagination, and her ten hidden secrets are revealed.

Seung-gu and Yoon-hye enjoy the honeymoon. The photographer, Seung-gu, sells a glance with his senior cousin who is a neighbor cousin on his way to work. Yoon Hye, who has no hesitation in managing her body, goes to the gym for a workout and hears the breakup of Tae Joon, the PT in charge. Tae-jun, who was living in the girlfriend's house, is kicked out with a breakup, and to Tae-jun, where he can't go, Yoon-hye rents out a room for his newlyweds to cover the repair cost of the ride. Offer your own rent. And their purposeful cohabitation begins…

Joon-soo was dumped suddenly by his girlfriend Sung-eun and is surprised by his father’s news of re-marriage. What’s even more surprising is that his step-mother to be in his ex-girlfriend Sung-eun. This is unacceptable and Joon-soo is in pain until a mysterious woman named Minki appears in front of him. She knows about him and his real mother. She tells him good things will happen to him and leaves after giving him a frame with a picture of a cat. A sexy woman appears the next day and comforts him, making his step-mother jealous. Will Joon-soo get over his ex-girlfriend? Or will they get back together.

Jung-tae has become a successful businessman. One day, he calls for a substitute driver, but the driver was Min-goo, the man who married his sexy crush, Yoo-ri. Jung-tae still hadn't forgotten Yoo-ri and learns that life if tough for this couple. Jung-tae suggests something to Min-goo and that is to let him live with Yoo-ri for a year in return for 300 million won and his house.

Young-hee invites her boyfriend, Geon-woo to her home to introduce to her mom. Her mom’s boyfriend also came and the four of them get together and have a meal. After a few days, Young-hee’s mom accidentally found out that Geon-woo went inside a motel with another woman.