Choi Jin-chul

When they were young, Min-joo and Seo-yeon cared for each other and were closer than brothers and sisters. However, she accidentally learns about Seo-yeon's tutor, Woo-hyeon, and because of this man, their 10-year friendship starts to become shaky. Meanwhile, Jeong-soo is hurt in seeing Min-joo like that, and so he distanced himself from Min-joo. Because of Min-joo and Seo-yeon's misunderstanding, Jeong-soo who couldn't care much might just leave so Min-joo tries to break up with the help of Seo-yeon. While in the process of breaking up, Min-joo and Seo-yeon went back to their close relationship. The love of women who have been separated because of man, and the two men's friendship is comically drawn.

At first, Yoo-jeong and Min-soo really loved each other. However, in a few months, there is a period of boredom between the two. Two people face each other and don't eat. Yoo-jeong confides her worries to her friend So-hyeon. But So-hyeon never misses the chance and confesses her feelings to Min-soo. Min-soo’s heart is shaken by So-hyeon. I'm meeting So-hyeon secretly. After a secret meeting with So-hyeon, he finds some time to relax.

Seo-yeon is being tutored by Woo-hyeon who is younger than her. She grew interested in her tutor, Woo-hyun, the first time she met him, and he is also fond of Seo-yeon. Seo-yeon succeeded in seducing Woo-hyeon with the help of her friend Min-joo. Even if Min-joo is aware of what Seo-yeon feels, she approaches Woo-hyeon. Seo-yeon gets mad at her best friend when she met Woo-hyeon. Min-joo, aware of the fact that it's her faultis also angered by Seo-yeon's appearance and tells her to meet Jeong-soo, her friend. Seo-yeon is also angry and tells Min-joo that she have to meet Jeong-soo as well. A bittersweet story about a man who is a very close friend is just about to start.

Jeong-woo, who is newly married with Na-yeong, is secretly meeting Na-yeong's close sibling, Min-joo. Na-yeong, who is not aware of that fact, is worried that she is alone and tells him that he will introduce a good man to him, but she disappears when she tells him that she does not need a man and tells her not to do unnecessary things. Meanwhile, Na-yeong, who came home, tells this to her husband, Jeong-woo, but Jeong-woo also shows a grim reaction and does not care about it. Then one day, Min-joo visits Na-yeong's newlyweds in surprise, and the three of them fall asleep while drinking happily. While sleeping, Min-joo comes to Jeong-woo and does something amazing. A fierce love between a close brother and the man of his sister is just beginning.

Newly-moved Yoo-jeong had a housewarming party. So-hyeon and Min-soo gather their friends at the housewarming party and meet for the first time. Yoo-jeong falls asleep alone, and Min-soo secretly kisses Yoo-jeong. So-hyeon, who finds out, threatens Min-soo and plays with him. Min-soo had no choice but to accept So-hyeon's terms. Yoo-jeong misunderstands them. But in the process, Yoo-jeong herself finds herself interested in Min-soo. Recognizing that, So-hyeon gives up the room he originally intended to live in to Min-soo and leaves.

Jeong-woo, who was enjoying his honeymoon with Na-yeong, quietly calls Min-joo while she is on a business trip. And after having a lovely time alone, he was resting at home, and Na-yeong came home earlier than he thought, and Jeong-woo hurriedly sent Min-joo away, but Min-joo is hiding in Jeong-woo's house instead of going back to her house. At this time, when Na-yeong and Jeong-woo peeked at the scene, they were so surprised that they ended their relationship with Na-yeong in a hurry and drove Min-joo away. But the immature girl, Min-joo, who is enjoying this, how will their relationship end? The thrilling love story between a young man and a woman is just beginning.

Min-soo, who just started living in a new home, calls his friends Woo-hyeon and Ji-yeong. The two kiss while Min-soo is away from home. Unfortunately, Min-soo also secretly had sex while sleeping. And Min-soo is watching them... Ji-yeong is provoking Min-soo after learning that he saw her having sex with Woo-hyeon. Who will Ji-yeong fall in love with after having sex with these two people? The sweet and bloody story of a woman and two men is just beginning.

Ji-yeong and Woo-hyeon is on a fun, casual relationship. However, Woo-hyeon finds out that his friend Min-soo likes Ji-yeong and decides to be a stepping stone between them. Will Min-soo and Ji-yeong be able to date after many twists and turns? Or will Ji-yeong go back to Woo-hyeon's arms? The story of two men surrouding Ji-yeong's heart begins.

Since young, Yeon-joo have a crush on her neighborhood brother, Jae-kyeong. Min-soo, had that kind of Yeon-joo in his mind. Whenever she's stressed, she would run to Min-soo A friend. A close secret with a childhood friend and the heart of Yeon-ju who loves him. Will Jae-kyeong be able to accept Yeon-joo as a woman who is younger than him? The unknown love story is just beginning.

Elementary school friends Min-soo, Woo-hyeon and Ji-yeong are close friends who still hang out with each other even if they're now older. Min-soo likes Ji-yeong but he knows that his best friend, Woo-hyeon, likes Ji-yeong too. He is hesitating to confess. One day, Min-soo who happened to spend the night with Ji-yeong was happy that he told Woo-hyeon that he was going to sleep with Ji-yeong as if nothing happened, and Ji-yeong also thought nothing about it. The story of three young people agonizing between strong friendship and love is just beginning.

Seo-yeon likes Jin-woo, her friend since high school. She is satisfied with their current relationship where she hides her feelings and stay as a friend. Jin-woo is not greedy because he didn't have a girlfriend for a long time. Dong-hyeon, who secretly likes Seo-yeon, knows that Jin-woo and Seo-yeon like each other, but he doesn't say anything. As time went by, Dong-hyeon found out that Seo-yeon was unlikely to like him, and asked Seo-yeon to sleep with him because she will connect him to Jin-woo. The two men's mixed love between a woman is just beginning.

Two men love one woman. Seo-yeon chooses who to have a relationship with, every time. Jin-woo and Dong-hyeon competes with Seo-yeon's attention, but she doesn't think the setup is strange. Actually, there is a reason why she doesn't want to choose between the two. Who will win Seo-yeon's love in the end? The unending love story between the three is just beginning.

Two men who love one woman. Every time, Seo-yeon chooses to have a relationship between two men every time. Jin-woo and Dong-hyeon compete while waiting on Seo-yeon. She doesn't think the relationship is strange. In fact, there is a reason for making unwanted choices between the two... who will be the last man who will win Seo-yeon's love. The never-ending love story of young men and woman is just beginning.

Yeong-bin succeeded in getting a job. He is excited and buys food for his friends. Na-yeong is going to give a congratulatory gift to Yeong-bin for getting a job. Meanwhile, Ji-hee and Yeong-bin meets separately, leaving Na-yeong and Min-soo behind. Na-yeong, who was on a date, calls Ji-hee and Yeong-bin and everyone gathers again to congratulate Min-soo. The fun continues, and while drinking together, they start to open their eyes to each other's love... The love between two men and women, no one knows, is just beginning.

Na-yeong and Min-hyeok become lovers and have a relationship, but they live together on the premise of marriage. At their first housewarming, the two invite their friend Jin-woo. Jin-woo, who is invited, keeps telling bad stories to Min-hyeok, and Min-hyeok, who is only gentle, thinks it is just a joke. Meanwhile, Na-yeong who is angry at Jin-woo's appearance, talks with Jin-woo about Min-hyeok, who is asleep. However, there was a hidden past between Jin-woo and Na-yeong. In fact, the two were sex partners.

Private secret of Na-yeon and Min-woo, the teacher who teaches herself from old times! As Min-woo's grades go up a lot, Na-yeon invites him to her house for a special class. Usually, she is a calm teacher, but her personality changes whenever she touches her body. Meanwhile, Na-yeon had another student named Jae-hyeon, who knows the relationship between Na-yeon and Min-woo and is jealous, but only enjoys the current situation. A special private tutoring class for two students and a female student, which is secretly conducted, is just beginning.

Yoo-jeong and So-hyeon are not real siblings but have lived together since childhood. So-hyeon is caught by Yoo-jeong spending time at home with her boyfriend. Min-soo saw Yoo-jeong naked in the bathroom. Yoo-jeong is interested in such Min-soo and seduces Min-soo. Min-soo knows that Yoo-jeong and So-hyun are not real sisters and approaches Yoo-jeong right away. So-hyeon finds out and So-hyeon breaks up with Min-soo. Min-soo played with two sisters...

Min-hyeok received a new tenant while using his house as a share house. One night, she finds Na-yeong sleeping on her front porch. Na-yeong entered the share house on the same day and the two sleep in the living room. Jin-woo came out after washing and Na-yeong woke up. Jin-woo has feelings for Na-yeong who is like four-dimensional... Meanwhile, Min-hyeok notices the strange currents of the two. Although Na-yeong knows Min-hyeok's feelings, he attracts Jin-woo to her room. The story of the dizzying love between two friends to take over a woman is just beginning.

Na-yeong and Jeong-woo starts their honeymoon. Both of them are excitemed to live together. Then Min-joo, a housewarming guest, comes to visit. Min-joo, Na-yeong's younger sister, starts to seduce Jeong-woo, who showed a crush on her when Na-yeong fell asleep drunk after drinking together. Jeong-woo accepts Min-joo without even thinking about it, and continues his close love without Na-yeong knowing it.

Sang-ho, a student who is not interested in studying and wants to take over his father's company and live comfortably, starts tutoring because of his father's anger. Sang-ho, who had little expectations, gradually falls into the secret class of his sexy tutor Hyeon-jeong. And a few days later, a younger, sexier tutor appears...