Column five, friendly, first love memories to stand up and take the chest-to-chest to survive both sexes fed up with bitter wounds of love stories such as hide and seek green authentic melodrama.
15 year old Lee Soo-yeon (Kim So-hyun) is a victim of bullying at school, targeted because her father was a murderer. Through a series of fated events, she meets Han Jung-woo (Yeo Jin-goo), the son of a chaebol and gangster.
Jung-woo protects Soo-yeon from the bullies, they become friends and soon fall in love.
One day, Jung-woo was kidnapped and Soo-yeon, who witnessed the abduction, attempts to help - only to be taken by the kidnappers as well.
Kang Hyung-joon's Mother, the mistress of Jung-woo's grandfather, and Jung-woo's Father have been fighting over a big sum of money.
She finally succeeds in moving the money to a Swiss bank with the help of her nurse Jun Hye-mi.
Wanting to leave Korea safely with Hyung-joon as soon as possible, Hye-mi was ordered to have Jung-woo kidnapped until they can flee out of the country. However, due to an unexpected accident during the time when Jung-woo and Soo-yeon were both kidnapped, they became separated.
Jung-woo was rescued from the kidnappers by his father but unable to return to help Soo-yeon, who was presumed to be dead. Jung-woo's Father, wanting to cover up the incident, bribes the kidnappers and the police to fake Soo-yeon's death.
However, Hyung-joon had saved Soo-yeon's life and killed a detective that was chasing after them. Soo-yeon flees out of the country with Hyung-joon and Hye-mi.
Fourteen years later, Jung-woo (now Park Yoochun) is now a homicide detective and has set his mind on finding Soo-yeon, believing that she is not dead. Soo-yeon (now Yoon Eun-hye) is now known as Zoey Lou, a rookie fashion designer who appears to have a bright personality, but still carries the emotional scars of her past inside her.
Fate leads to the meeting of the two, but Zoey is unforgiving towards Jung-woo for abandoning her during the kidnapping.
Meanwhile, Kang Hyung-joon (Yoo Seung-ho), rich with the money his mother took from the Han family, returns to Korea for revenge.
He appears warm and nice, but turns out to be a psychopathic murderer and uses the alias Harry Borrison to get his revenge on Jung-woo's father for murdering his mother.