The Undateables is about a man, Hoon Nam, who refuses to love and a woman, Jeong Eum, who dreams of being passionately in love but gives up on the idea due to the reality of things. These two offer to help those who are single to fall in love, but in the midst of all this, they fall in love with each other. Hoon Nam officially becomes the second son of DMJ Foods when his biological mother, who gave birth to him out of wedlock, passes away. Due to this, he has never believed in love and has the ability to distance himself just enough so that he won't be affected emotionally by others. On the other hand, Jeong Eum is the type who gives her all whether it be in her everyday life or in love. She believes that whoever loves the other the most is the happiest, and this is why her first love only left her with scars. Tune in to watch how these two seemingly helpless and foolish people fall in love!