Kang Ji Yun (Han Ji Min) is the confident and accomplished CEO of a leading headhunting firm. Despite working in a fiercely competitive industry, Ji Yun thrives and dedicates herself fully to her work. However, she's completely lost with even the simplest daily task outside of work. This is where her secretary Yu Eun Ho (Lee Jun Hyuk) shines: he's an extremely capable worker, and raising his six-year-old child alone helped him further develop life skills that transfer seamlessly to organizing Ji Yun's life. But as the line between their professional and personal relationship begins to blur, something else seems to spark between them!

After losing her mother and finding out that her college funds were stolen by her cruel stepmother, Eun Ha Won (Park So Dam) is in desperate need of a job. After a chance encounter with an incredibly wealthy old man who admires her straightforward personality, Ha Won becomes a housekeeper for the man’s three grandsons. Living with the brooding Kang Ji Woon (Jung Il Woo), the charming Kang Hyeon Min (Ahn Jae Hyun), and the affable Kang Seo Woo (Lee Jung Shin), Ha Won faces unexpected challenges and even more unexpected romantic tension. As her relationship with the cousins deepens, she must navigate her new life and determine where her heart truly lies. This 2016 South Korean romance drama was directed by Kwon Hyuk Chan and Lee Min Woo, based on the web novel of the same name by Lee Min Young.

In the middle of the 18th century in Joseon, the social class's severe contradiction and rapid change are vividly described through the main character of this story, who was born into the lowest-class family. This is a story about the hope and self-consciousness of the lowest class of people, who were evaluated only by the value of wealth without being recognized for the minimum value as a human being. In addition, it introduces the reality of the underground organization of the lowest class of people, which emerged as a serious social problem during the Manchu Invasion of Korea in 1636.

Seo Yeon is a temporary PE teacher in a prestigious high school called Shinhwa High School. She acts so rough and tough as if she were a boy, but she has every reason for that. Seo Yeon met her two stepbrothers and one baby brother when she was little. Unlike Seo Yeon, they had good looks, just like handsome cartoon characters. Because of her different appearance from her brothers, people didn't think of her as their sister. Therefore, she now has a phobia about handsome boys, and her ideal type of man doesn't have a good look. However, a man who has a good-looking appearance appears in front of her. 15 years ago, Kang Woo got dumped by Seo Yeon because he was ugly and fat. After getting humiliated by her, Kang Woo went abroad to study. He lost a lot of weight with a desperate effort, and now he is obsessed with his appearance. Kang Woo realizes that his trauma is related to Seo Yeon, and he wants to end this trauma. He uses his family connections to be appointed as Shinhwa High School's director. Since they have opposite personalities and appearances, there are always conflicts between them.