Because of her father's sudden death, Lee Soon-Shin (IU) and her mother fall in trouble. They both attempt to find happiness, while Lee Soon-Shin falls in love.

Meanwhile Shin Joon-Ho (Cho Jung-Seok) is the president of an entertainment management company. He is over confident, arrogant and cold-blooded. By meeting Lee Soon-Shin, he realizes the meaning of true success and also changes.

....

Jung-Ae (Ko Du-Shim) has three daughters: Hye-Shin (Son Tae-Young), Yoo-Shin (Yoo In-Na) and Soon-Shin (IU). Hye-Shin, the oldest daughter, married a competent man and has a daughter. She has just arrived back from Hong Kong with her daughter, but without her husband. Yoo-Shin, the middle daughter, looks down upon younger sister Soon-Shin. Meanwhile, Soon-Shin tries to hold a steady job, but keeps failing. She is adopted, but unaware of that fact.

One day, Soon-Shin gets a temporary part-time job at a hotel. If she does well she can get a permanent position. On the first day of her new job, Soon-Shin works with actress Song Mi-Ryung's (Lee Mi-Sook) photo book release event at the hotel. Joon-Ho (Jo Jung-Suk), who is the president of an entertainment company, attends the event. Joon-Ho meets his ex-girlfriend Yeon-A (Kim Yun-Seo) there, whom he still hasn't gotten over.

Soon-Shin and entertainment company president Joon-Ho then physically bump into each other. Joon-Ho becomes covered with the food that Soon-Shin was serving. He becomes so angry that he asks the hotel manager to fire Soon-Shin, even though she begs him not to.

On the way home, Soon-Shin meets a man who introduces himself as a president of an entertainment company. He tells Soon-Shin that she has the looks to become a talent and gives her his name card. Soon-Shin goes back home excited. Her mother has prepared a festive dinner to celebrate Hye-Shin's return from Hong Kong. During dinner, Soon-Shin tells everyone that she was scouted on the street, but middle sister Yoo-Shin again acts condescending towards her. Soon-Shin bursts into anger. Even though her family laughs at her and thinks it's ridiculous, her mother Jung-Ae thinks differently.