Mimi started to gamble, dreaming of turning her life around. One night, she loses her family in front of her eyes in an unknown attack from an unidentified assailant.

Son Da Eun, 17, is the youngest of three sisters. From an early age, she and her sisters would spend their time reading romance-themed comics and novels, and Son Da Eun would spend her nights dreaming of finding true love. Her family moves to the South Korean capital, Seoul, and she finds herself living next door to a handsome high schooler named Kim Seung Hyu. He is charming and attractive, and she feels that perhaps he might be her first true love.

In the turbulent Joseon dynasty, army commander Min-jae watches ambitious Prince Yi Bang-won while becoming entwined with Ga-hee, a vengeful gisaeng. Fate collides as power shifts.

Lee Hyeong is a talented songwriter. He happens to connect people who are not good with love. Those include Hyeong-Gyeong who wants to become a singer, but she suffers from stage fright. Scully is a high school student. She helps Lee Hyeong's spirit. Chan-Young is a colleague of Lee Hyeong and he likes Hyeong-Gyeong, but in vain.

Mal-hee, brought up by strict single father, is a 33-year-old virgin. Everybody except her seems to have a decent sex, even her conservative father died while having heated sex. What is worse, Se-young who enjoyed sex storms with Mal-hee's father intrudes her life claiming Mal-hee's father had a will that he would give his house to her. Mal-hee has no choice but living with Se-young to keep her father's reputation. However Mal-hee is slowly fascinated by Se-young's frank attitude, and finally decides to get laid before too late. Following Se-young's instruction, Mal-hee is set to seduce her Mr. Right.

Jin-soo is satisfied with life and tries to make the best of things. When his father disapproves of the girl he likes, he is determined not to give up. However, his resolve is tested with the death of a former classmate and news that his love interest is planning to leave Korea.

Waiting for their first baby, a young couple Junui and Biru decides to move to the villa in their hometown where they’ve spent a summer vacation with their childhood friends. Junui soon is haunted by painful memories of his first lover Jihui who’s been missing in the villa. Meanwhile, Biru finds the suspicious trace of strangers in their house and is obsessed that someone is watching them in the house.