Movies Similar to 18 Year Old Seungha's Easy Piece of Cake

Hole Sister(2021)

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.

Beautiful Girl Paradise Hot Women Village(2021)

A golden opportunity comes to Deok-gyu, who likes to imagine women living in the same boarding house with their own special names. Judy, who he saw once and thought very pretty, opened the door and started taking a shower. Deok-gyu was caught enchantedly watching the scene and tries to escape from the boarding house. After the incident, strange things begin to happen to Deok-gyu.

Housewive's Body Secrets(2021)

Soo-hyeok and Yeon-ji are faithful couples. Although Soo-hyeok is faithful during the day, he wants to be rough at night, however, Yeon-ji is still faithful at night. Su-hyuk uses his junior In-seop to turn Yeon-ji into a hot woman. In-seop manipulates Yu-ri to defile Yeon-ji, but falls in love with Yeon-ji and covets her. Soo-hyeok is angry that Yeon-ji and In-seop slept. Soo-hyeok covets Yu-ri for revenge, but gets caught by his wife Yeon-ji, who declares her union with Yu-ri. Soo-hyeok must reveal that Yu-ri is actually bisexual, not gay, to protect Yeon-ji. Soo-hyeok shows Yeon-ji a scene where In-seop and Yu-ri have sex. However, Yu-ri and In-seop's sex is not good enough. In-seop forcibly scurries Yu-ri at Soo-hyeok's order, and eventually runs to Yeon-ji when he finds out that Yeon-ji is disappointed in her. The two find a new gender identity.

Jin-joo's Loss of Innocence(2018)

Jin-joo is an actress who is sexier than a model and is good at what she does. Her fans have prepared a special present for her. She talks about her secrets and private life for the first time and it's very different from what he know of her. She talks honestly about her first 'experience' and the intimate facts about women.

Friend Sister(2021)

Jung Tae is living with his girlfriend Young Ji. His friend Min Ho ends up living with Jung Tae and despite the fact that Young Ji doesn't like this situation, Min Ho who is shameless soon gets used to living together. Then one day, another woman appears at home, Jung Tae's former lover and younger step-sister In Hye. Her appearance leaves Jung Tae in great confusion, followed by a sex scandal between four feisty men and women.

Adultery Alumni Association 2(2019)

Hye Jin, Hee Kyung, and Han Hee who are among the high school alumni. They met at the alumni meeting and heard that the male alumni who did not have a chance to study during their school days were greatly successful as an investment company. And after seeing the settlement a few days later, I am happy to share my memories, but in fact, their purpose (?) Is separate. They are difficult to afford, and they want to get help from Zhengzhou. Since then, Zhengzhou has been enjoying the love of female alumni.

Young Mom 4(2020)

Ji-seok, who raised her daughter Yoon-jeong by herself has had troubles that she cannot talk about. He's just looking to tell his daughter that he has a woman to marry. Since the bride-to-be Soo-jin is of the same age as her daughter, Yoon-jeong is afraid of opposition and cannot speak. Ji-seok finally asks for help from his daughter's boyfriend, Seok-joo, who came to play at home...

Kind Daughter's Inside Story(2021)

A sexual film about the relationship between a father and a daughter.

Head of Empty House(2021)

A sexual movie about a man and a woman who are intertwined with the senior wife.

Shh! Sister's Secret(2021)

One late autumn day, Hyeon-soo visits her grandmother's house and spends a few dizzying days with his older cousin.

18 Year Old Model Rika's Fancy Walk(2020)

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.

Idol Seungha's R-Rated Film Shooting(2021)

Film producer Na-eun and director Yeong-tae are on the verge of shelving out cash for an adult film production. They're too busy blaming each other for the messed-up filming. Before another filming begins, Na-eun suggests Yeong-tae to become an actor himself and practice filming. Na-eun leads the shy Yeong-tae very skillfully. How far will the practice go...?

Sex Girl 12(2021)

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.

Sex Girl 11(2021)

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.

Sex Girl 8(2020)

Jun-ho and Min-soo, experience a hard time because of Da-hee who drinks whenever she breaks up with her boyfriend, but they still take care of her. But they heard that Da-hee is meeting her ex-boyfriend again. Actually, the two guys like Da-hee. They’re trying to make sure that Da-hee won't meet her boyfriend again. The love story between the two men, which is invisible to the eye, is just about to happen.

Pretty Young Sister 3(2020)

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.

Pretty Young Sister 4(2021)

Jeong-woo who is tired of instant food and living alone decides to order delivery food. However, Ga-yeong, the delivery driver, is unfriendly even if she was late. To criticize Ga-yeong sarcastically, he asks, "Will you do everything if I give you money?" Ga-yeong takes the words seriously and attacks Jeong-woo's house. Woo-hyeon is questioning the woman's underwear found at the house of Hyeon-min who came to play at Jeong-woo's house, and learns the situation through Ga-yeong who just came. He said he was better than Jeong-woo. However, Ga-yeong is already full of thoughts of eating both of them.

Pretty Young Sister 5(2021)

Yeon-joo feels good about Min-soo who found his cellphone, saying that it is fate. Although they are dating, she is disappointed in Min-soo. While kissing at Min-soo's house, roommate Jae-kyeong catches them. Yeon-joo is hurt when Min-soo had to hide her from Jae-kyeong. Jae-kyeong comforts Yeon-joo and begins a new fate. And the truth that Jae-kyeong is the person who found the cellphone has been revealed...

My Daughter's Lover 3(2019)

Mi-seon loves her family, but she loves having sex with younger men. One day, she hears her sex partner, Jeong-woo, has a brother and she feels more attracted to the younger man. Mi-seon goes to Jeong-woo's house and tries to seduce his brother when he's alone. However, her new sex partner is her daughter's boyfriend.

Secret Agreement Oh! My Hottie(2021)