Park Hye Rin has always been a strong little girl. After her mother passed away,however, Hye Rin did not get the chance to speak out her thoughts to anyone. Her father found another lady months after the passing of her beloved mother. Hye Rin was not pleased about their marriage but decided to keep her true feelings on the marriage to herself as her dad looked content with his new and young wife. The minute they said their vows, Hye Rin knew her life was about to change. However, one year later, her father died from suicide mysteriously. As stated in her father's will, all his wealth and stocks were to be transferred to Hye Rin's step-mother.

Kim Myung Soo was a cold-hearted guy who is a bastard at time. When his father told him to get himself a girlfriend to prove that he is a responsible and matured heir to the company, he panicked. Myungsoo asked for help from his Infinite friends and Sunggyu suggested that he held a party to find a temporary girlfriend to please his father. The news of the party spread like wildfire and it reached the ears of Hye Rin's step-mother. Hye Rin's step-sister, Sojin, was exhilirated to go to the party but Hye Rin thought otherwise. But what happen when Hye Rin's aunt became her "fairy godmother" and forced her to go to the party and without her step-mother and step-siblings knowing? 

Park Hye Rin

- 21 years old 

- A part-time worker at a convenience store

Kim Myung Soo (a.k.a: L)

- 22 years old

- The sole heir of Kim Company

Park Ji Min

- The step brother of Park Hye Rin

- Quiet and observant 

- Has a slight crush on Park Hye Rin

INFINITE

- A group of 7 boys who have been friends for as long as 10 years

- Kim Sung Gyu, Lee Ho Won (Hoya) , Lee Sung Jong, Lee Sung Yeol, Jang Dong Woo, Nam Woo Hyun, Kim Myung Soo (L)

Kim Min Hee

- The aunt of Park Hye Rin

- She is cheerful and always think positive.

Park So Jin

- The step sister of Park Hye Rin

- Has a huge crush on Kim Myung Soo

- Arrogant and rude