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 becomes friends and soon fall in love. One day, Jung-woo was kidnapped and Soo-yeon, who witness 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 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 orders Jung-woo to be kidnapped until they can flee. However, due to an unexpected accident during the time when Jung-woo and Soo-yeon are both kidnapped, they became separated. Jung-woo is rescued from the kidnappers by his father but unable to return to help Soo-yeon, who is presumed to be dead. Jung-woo's father wanting to hush up the incident bribes the kidnappers and the police to fake Soo-yeon's death. However, Hyung-joon has saved Soo-yeon's life and prevents her from leaving with her stepfather, a Detective, by killing him and Soo-yeon flees 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 Zoe 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 Zoe 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 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.
first i was bored by the first few ep but i really wanted to know what will happen and i watch it till the end i loved it soo much and i loved yoo seung ho and i really miss him i hope he will come safe from the military