Personals II: CasualSex.com

Their neighbors, Young-hoon and Chul-soo, have their first love, Minjung. The innocent glass appears to the two men, and each other's love is mixed. As time goes by, Young-hun finds out that her real love is glass and discusses how to reconcile again. Meanwhile, Chulsoo completes his life in the city and descends to his hometown. Then, by chance, Yeonghoon and Yuri appear in the place of reconciliation, and after seeing such withdrawal, Yeonghoon is very embarrassed and asks why he came back. Cheolsu presents something to Younghoon and Cheolsoo and Yeonghoon Yuri go to Minjung's home, the first love of the two men... The story of the two men and women who cannot see one another begins again.

A young woman named Gina buys a how-to book on sex, leading to a series of erotic dreams and fantasies.

Eun-ji and Seung-ho, Seong-sik and Joo-ran move into a neighborhood at similar times. Eun-ji is lonely because of her husband's frequent late-nights and Seong-sik takes care of the house while his wife works. One day, Seong-sik goes over to Eun-ji's house to return a package but end up drinking wine with her. Seong-sik drunkenly kisses Eun-ji and the two spend a night in each others' arms. They continue to meet secretly like that and one day lie to their husband and wife and leave on a trip together. However, Seong-sik returns home because his pipes have burst and Eun-ji witnesses her husband and the woman next door, Joo-ran in bed together. A few months later, Seong-sik, Eun-ji, Seung-ho and Joo-ran run into each other but with different partners... Are you living with the one you love?

Woo-jin, who is a repeater of college entrance exam, and Taek-sik's friend, Kang-hee come and visit Woo-jin's hometown on a small island. Woo-jin's mom, Hyeon-sook operates a small sashimi restaurant and a bed and breakfast to make a living on the island. Although Hyeon-sook has sex with Bong-seong, she rejects his proposals. One day, Woo-jin is terribly shocked to accidentally see his mom Hyeon-sook and Bong-seong having sex.

Rick and Angela, an extraordinary young married couple who are bored with mate swapping and orgies, decide to blackmail people into becoming their sexual slaves.

The head and players of Z Escort Bar, where only the real players gather. In front of these guys, ground shattering, hot female guests came to visit. Choi Si-won who is said to be one of the top 20 self-proclaimed business leaders will make a deal with the young woman in charge of public affairs. Meanwhile, the ace, No-il, meets Jeong Yu-ri who only thinks of herself, while forming an ambiguous relationship with his rival, Ko-tae.

Honoka, a daughter who takes care of her self-proclaimed depressed father-in-law, ran out of the house because she could not stand being sexually demanded. On the other hand, a young wife, Haruka, who got married with an age difference, also left home in a rage at her husband's behavior. Such two people meet and hit it off from each other's circumstances. They complain that they don't want to go home...

Tae-hee, can't live without her dead husband, and is living alone without being remarried. Her neighborhood friends, Yeong-ju and Cheol-min still feels sorry for her. However, Yeong-ju's son, Min-ho, secretly takes pictures of Tae-hee, admiring her. One day, Tae-hee and Yeong-ju goes to the grocery when she heads back home, after forgetting her cellphone in Yeong-ju's house. Just in time, Min-ho comes out of the shower and hugs Tae-hee...

Seok-jin has a tremendous amount of energy. Mi-sun introduces her friend Hyun-jung to Seok-jin, who will be the very father. Hyunjung, who had no place to stay, stayed at Seokjin's house at the request of Misun. Hyunjeong is twisting Seokjin. After having sex with Seok-jin, Hyun-jung says that it was too good for Mi-sun. Mi-sun approaches Seok-jin as a substitute for Hyun-woo, who is the best. Seokjin also enjoys sex with his sister's fiance, Misun.

Seonghwan is invited to Hyejung's house. On the day of the invitation, I see Hye-jung's sister, Hee-soo, and fall in love with her at first sight. Hee-soo also continues to be attracted to the old first love and younger Sung-hwan. Seong-hwan and Hee-soo have a conflict between their sister and brother. Eventually, my sister secretly engaged in love affair, Sunghwan, who can't miss both, I make an extreme choice to love.