Kim Jung-ae (Go Doo-shim) lovingly raised Lee Soon-shin (IU) as her own daughter after her husband brought the baby home, saying that he found her alone at a bus stop.

After quickly signing a contract, Soon-shin discovers that she has been conned and ends up being charged the amount of money Shin Joon-ho stole from her.

After making a bet with actress, and ex-girlfriend, Choi Yeon-ah (Kim Yoon-seo), the real Joon-ho (Jo Jung-suk), over-confident and arrogant, is determined to transform Soon-shin into a star.

When Joon-ho's younger sister Shin Yi-jung (Bae Geu-rin) develops a crush on Chan-woo, Yoo-shin realizes her true feelings for him.

Eldest daughter Lee Hye-shin (Son Tae-young) is beautiful and competent, but feels like a failure when her marriage ends.

She later meets Seo Jin-wook (Jung Woo), a neighborhood baker, who shows her consideration and gentleness and helps heal her wounds.

Watching Soon-shin do everything to realize her dream of becoming an actress, Joon-ho looks back on his career and finds himself changing as he discovers the true meaning of success.

Unwilling to admit his romantic feelings for her, but genuinely concerned for her welfare, Joon-ho is determined make Soon-shin return to acting, which she once said made her happy.

When Mi-ryung tells Shin Dong-hyuk, Joon-ho's father, to take his car's black box to the police since it recorded what happened the night of the accident.

Hye-shin is dating Jin-wook with Woo-joo's blessing, Yoo-shin and Chan-woo are preparing for the birth of their first child, and Soon-shin films her first movie with Joon-ho.

The group claimed that historical figure Lee Soon-shin (or Yi Sun-sin), an admiral famed for his victories against the Japanese Navy in the Imjin War during the Joseon Dynasty, is an official national symbol whose status will "deteriorate" when associated with the "weak and clumsy" protagonist that lead actress IU plays.