Kim JaeJoong , a Seoul businessman with a rich background, one night did an unforgivable mistake he hit a person with a car.He was sure - the girl died , but her heart suddenly started to beat again.He was relieved that he didn’t kill anyone , and hoped to solve all issues with money.That accident  didn’t take girl’s life but instead her memory.When she woke up she had no idea who she is,and JaeJoong was responsible for it.He decides to help her out until she recovers.But when later that girl found out that she is not an ordinary person and as she starts to remember things , situation becomes more and more complicated.Even JaeJoong is interested in solving her mystery,and in her too.