Choi Sung-eun

So-jeong, who lives with her older brothers, is living as a sex partner with her younger brother, Sang-woo, without her eldest brother Min-woo. However, I'm worried that Sang-woo's reaction isn't cool these days. Sang-woo started seeing his ex-girlfriend again. Meanwhile, Min-woo witnesses So-jeong and Sang-woo having sex one day...

Min-woo solves his sexual partner Yu-ri's financial troubles, and Sam-su-ha hires Yu-ri as Min-seok's tutor on the condition that he keeps his relationship a secret from Min-seok for the sake of his younger brother Min-seok's math grades. Min-seok gets excited when Yuri, who looks sexy his age, starts tutoring him, and he dreams of having sex that night. Meanwhile, Yuri doubts that Min-woo is dating another woman, but when she learns her door code while attending tutoring, she sneaks into Min-woo's room late at night to confirm. Yuri, delighted to see Min-woo sleeping in her room without having an affair, wakes up sleeping Min-woo and gives her a special service.

Eugene, who was not satisfied with her sex life with her husband, Sang-woo, became suspicious of Sang-woo's affair. I decided to get an introduction to a new agency from a close friend, I affirm that there is no way to get the 3 million won for a new agency. This is because Yujin doesn't have money because Sang-woo has the family's economy. Meanwhile, Minwoo, who was fired from his job for prolonged coronavirus, While spending freely at home, she feels lust for her sister-in-law, Yujin.

Hail is worried because Seungha, a pretty and sexy daughter-in-law, looks like a woman these days. An open-minded way of walking around the house in short clothes without hesitation, showing aegyo, etc. It is becoming increasingly intolerable to the tsunami. Hearing the sound of his son Do-jin and Seung-ha having sex is also starting to get harder. One day, the tsunami was spent relaxing at an illegal massage parlor. He takes a nap, but Seung-ha appears and seduces himself to dream of having sex. Seungha gazes at the tsunami who wakes up after having a sweet dream.

Joa, who lived alone with her new father Hail, I'm worried about Dojin, the nephew of Tsunami, who has been living with me for a while now. This is because Do-jin seems to have noticed that the tsunami and his own relationship are related. And for some reason, young Do-jin is increasingly attracted to him. Then one day, Joa didn't know that the tsunami was having an affair with another woman. I ask for sex, but the tsunami sometimes goes unconscious during sex. The tsunami's stamina could not stand. Joo-a waited impatiently in front of the emergency room from Do-jin. Fortunately, I am relieved to hear that there is no harm to life. That night Do-jin asks Joo about his relationship with the tsunami. Joa thinks that the tsunami and her internal relationship is something she can't hide anymore. Tell Dojin all the facts. And Dojin also asked if he was a man who wasn't mixed with a drop of blood. Seduce and engage in sex.​

Seung-ha hasn't been married for a while..I am dissatisfied with my husband Dojin's sex because I am increasingly not satisfied. I start to doubt whether Dojin is having an affair. Father-in-law Hae-il loves Seung-ha, who is open and friendly. But that degree began to pass, and finally I started dreaming of having sex with Seung-ha. One day, Seung-hae Do-jin had a woman she met before marriage. You find out that you are still having an affair with her. So angry, Seungha decides to divorce...

The vigorous sexual desire 21-year-old Seung-ah is more than 10 years old. She is not satisfied with her husband's sexual life. So I'm secretly enjoying affair with other men. I even had sex with my younger brother Dong-jun once. Meanwhile, Dong-jun suffers from guilt after having sex with her younger brother, Seung-ah, but she cannot forget her sex with Seung-ah. Dong-jun starts to meet ex-girlfriend who broke up to remove Seung-ah from her head.

Boyfriend with the same sexual orientation as Bo, who always has a body attached to lust. He lives with Gangseo and has a satisfying sex life. Then one day, Kang-joon's older brother, Chan-joon, came up from the province and decided to live for a few days. Chan Joon is also a brother of Gangseo and it is a style that reveals the color when there is time Bora notices Chan-joon's dark eyes at a glance. One day Gangseo is having an affair with Arang, another sex partner shared with Chan Joon. Bora masturbates Chan-Jun and has sex while masturbating with the door open in the room.

Chan-joon, living with an open-minded relative sister. I don't care about Chan-joon at all, such as bringing my boyfriend home and having sex. That's why Chan-joon began to meet another man after receiving a sex break-up after having sex with his girlfriend. Heartbroken Chan-joon saves Bo Ra from being forced into dating by her boyfriend. Bo ra is curiously drawn while looking at Chan-joon, who was hurt in a quarrel. After the conflict, Bo ra enters Chan-joon's room.

Gangseo, while having sex with his girlfriend these days, often thinks about playing her older sister. Try to blame yourself for being a pervert, but if you see the sexy look of your performance. The body reacts instinctively at all times, and finally even dreams. One day, Gangseo overheard the sound of his older brother, Chan-joon, and his performance after sex. In Chanjun's swear words, I find out that the performer is from a room salon waitress... ​

Arang doesn't have a quick match with her husband Chan-jun. I live by satisfying my needs through masturbation. Meanwhile, Chan Joon is tired of Arang, who is not satisfied with his sex life. I secretly enjoyed affair with Arang's friend Bora.

Hye-ran, who had tutored at Yeosu and her home, said there was something left behind. At the request of Yeongsu, he will additionally help him study.

Ji-eun decides to become a tutor for Sang-woo's son, Sang-woo, in order to make sure he has a rich boyfriend. When tutoring begins, Sang-woo, who was kicked by her older sister Hye-ran, is attracted to Ji-eun, who kindly teaches herself. One day, Sang-woo witnesses the love affair of his father and Ji-eun, and falls into a sense of loss. Meanwhile, Ji-eun overhears Ji-eun's conversations with a friend, and notices that Ji-eun's only goal is to meet her. In the end, Ji-eun notifies Ji-eun. Ji-eun arrives to attend the last class, and because of her appointment with Sang-woo, she eventually gives up her body.

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.

Hye-ran, who has been living alone, has to live with Sang-woo, the nephew of her stepfather who her mother remarried. As time went, Hye-ran begins to feel lust whenever she sees Sang-woo. Even without blood relations, Hye-ran is confused about her feelings for Sang-woo, and she is also certain that her boyfriend, Gi-joon, is involved with another woman. Meanwhile, Sang-woo who had sex with Ji-eun, confessed to her that he was thinking of Hye-ran when they were in the middle of doing it, and then announced their breakup. Sang-woo went home late that night. Upon arriving the house, Sang-woo found Hye-ran in her underwear, pretending to sleep. Sang-woo eventually went in and touched Hye-ran. After confirming how much he wants her, she let Sang-woo take over her body.

With her mother's remarriage, Dong-jun lives in his stepfather's house while they are on honeymoon. However, on the first night of living in his stepfather's house, he witnessed his step-siblings, Seol-ah and Do-jin, having sex. Seol-ah and Do-jin are not brothers or sisters, but Dong-jun is shocked at the thought that they are brothers and sisters. That night he dreamed for the first time in years and the next day, Do-jin leaves early and only Dong-jun and Seol-ah were left at home. Dong-jun feels burdened by Seol-ah’s kindness. After a while, Dong-jun, who returned from exercising in the yard, finds Seol-ah taking a shower with the door open. Seol-ah asks Dong-jun to wipe her back. Since they have become families, she suggested for them to shower together, and they had sex.

Ki-joon, who lived alone with his younger brother Sang-woo, is worried about Hye-ran, who was the mistress of his father who died in an accident not long ago. Hye-ran had no place to go since their father’s support had been cut off. She had no plans to move away and Sang-woo is into her. Meanwhile, Hye-ran is not satisfied with her sexual relationships with Sang-woo and she is worried about Ki-joon’s mind.

Sang-woo is suffering from erectile dysfunction and premature ejaculation, because he is worn out from Ji-eun's strong sexual desires. Then, one day, Ji-eun sends him to a treatment center and the specialist is no other than his ex-girlfriend, Hye-ran. They bicker about past things, but in the end agree to start treatment. Hye-ran manages to bring back Sang-woo's sexual desires with lower body exercises, massages, sexy dances and mental therapy. On the day he is discharged from the center, Sang-woo and Hye-ran share a last kiss, but end up wanting each others' bodies...

Sang-woo goes home feeling down after being dumped by Hye-ran. At home, he is surprised to see a strange woman doing the chores. Ji-eun introduces herself as the new housekeeper. Sang-woo feels attracted to Ji-eun, who is open-minded and good looking, but is disappointed to see her act as his father's 'partner'. Then one day, Sang-woo's father passes away while having sex with Ji-eun and Sang-woo becomes an orphan...

Before he goes back to school, Sang-woo moves in with his aunt who gets divorced from his uncle who she's been having problems with for her carefree ways. One day, Sang-woo comes across an adult broadcasting application called Bong-al TV and sees his aunt under the name 'BJ Aunt'. She's covered her face with a mask but he's sure it's her. Sang-woo feels horny at the sight of her and wonders if he's a pervert.

Yeong-soo saved money for 10 years since he graduated high school and now he's getting ready to go to college, which he has been putting off. Ji-eun is his girlfriend who has been by his side for the last 5 years, but the sex with her is quite boring. It almost feels like a chore. However, he doesn't want to break up with her, as they have been together for a long time. The first mock test comes up, but Yeong-soo has lost his will to go to college and his sexual desires.

So-yeon is on a weekend date with her boyfriend, Ji-seok, and then she invites him to her house to save money on the motel. Her step brother, Sang-woo, comes home earlier than expected and sees them having sex. He records them secretly and plans to blackbail So-yeon with it.