This is a melodrama romance revolves around Lee Jung Hoon (Kim Dong Wook),a man with hyperthymesia with a condition that gives people the abilityto remember an abnormally vast amount of their life experiences in vivid detail, and Yeo Ha Jin (Moon Ga Young),a woman who has forgotten the most important moments of her life. The two people with similar scars fatefully cross paths one day and come to love each other.