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.

Hyeonchang and Yoonji have sex for the first time to celebrate the 1st anniversary of their relationship. Because both of them are clumsy, sex only hurts. They remain scars to each other. Hyeonchang is suffering. With the introduction of a local senior, he enrolls in Cheongbul academy, which teaches the skills of sex. Hyeonchang learns several skills and graduates. Meet Yunji again and enjoy the sex he learned at Cheongbul Academy.

Hyeonchang and Yoonji have sex for the first time to celebrate the 1st anniversary of their relationship. Because both of them are clumsy, sex only hurts. They remain scars to each other. Hyeonchang is suffering. With the introduction of a local senior, he enrolls in Cheongbul academy, which teaches the skills of sex. Hyeonchang learns several skills and graduates. Meet Yunji again and enjoy the sex he learned at Cheongbul Academy.

Mira and Yoo-jeong live in the same house. Mira is talking to Yoo-jeong about her boyfriend Min-su, and she makes a bet with Yoo-jeong. Then one day, Yoo-jeong's boyfriend, Hyun-sik, finds out that two women have bet on him and goes home. Come and suggest a one-on-one play...

A middle-aged truck driver travelling through the desert with his good-for-nothing nephew and a pretty nun, gets stuck and are forced to wait to be rescued.

Yoo-jung and Hyun-sik were lovers who cared for each other. However, Hyun-sik is getting bored as his meeting with Yoo-jung goes on. Meanwhile, he meets Mira and Hyun-sik wakes up to a new stimulus and begins to have an affair. Yoo-jung, who was puzzled by Hyun-sik's unusual appearance, finds out that Hyun-sik is having an affair with Mi-ra when she sees a text message on Hyun-sik's phone. Then one day.. He asks Min-so, a senior in the same class, to consult with him, and ends up drinking at Yoo-jung's house.

Three friends, Jelena, Ana and Zorka meat three days before 20-year's high school reunion. Ana lives in a neighboring country, she's a biochemist and she has diagnosed (correctly) herself with breast cancer. Fuki their best male friend, never moved from their hometown, lives with his high-spirited grandmother, and occasionally gets involved with dubious people and business schemes. Each of the ladies used to be in love with Fuki at some point in their lives, but after all, they remained best friends. In three days, they all have a great challenge: to help Ana find the money for the operation. They will have to go through serious soul-searching, in order to find courage and strength to bring out the best and most noble in them. Breasts define all of them, not only as a metaphor.

Unlike the massage shop next door that is crowded with customers, Ara's massage shop is quiet without customers. One day, Bomi, the ace of the shop next door, comes to Ara's shop, and she learns the trade secret of her next door shop through Ara. That trade secret...

In the family of Julia and Maxim, another girl will be born, who will become an object of adoration for Lena and Sonya. While the parents are busy taking care of the baby and the problems of their own relationships, the older sisters will have to cope with new reasons for rebellion in order to eventually understand: even if it seems that everything in the world turned against, the family will certainly understand and support.

Twins Tia Landry and Tamera Campbell were separated and adopted at birth. Fourteen years later, they encounter each other by chance at the mall. After the families meet, Tia's widowed father agrees to let Tamera and her single mother move in with them.