Krystal's family, well, not family, her aunt and her are very poor. They live in a mobile home. Krystal has to keep two jobs and her aunt has to keep two jobs also to support Krystal's three year old daughter, Soojin and their rent. Krystal's parent died in a plane crash. Krystal has a daughter because she was . So technically, she's a . Her aunt cannot accept that she is living in such poor conditions, so she set her up with Minho. Krystal is your average smart alec especially around Minho. She slightly dislikes him because he doesn't care about the principles of life and such.

Minho's parents, Nichkhun and Victoria, are rich. Two story house, jacuzzi, pool, sauna. Minho is kind of careless. He has no emotions, no feelings, and doesn't care about anything. Kinda bossy too. Minho also slightly dislikes Krystal because she's too much of a smart alec.

But hate turns into love, fortunately for these two people.