In not-too-distant future, it has become possible to alter one's memory. The border between truths and lies become blurry in one's mind. Is there a truth one can depend on?
Wu Jin runs a flower shop, one of few that sells real flowers instead of common electronic ones. Wu Jin has a special ability, unbelievable memory and suffers side effects. He received his uncle, Dr. Park Yeong Jae's treatment for his special condition. Nevertheless, he is happy because he still has his memory of loved one, Seo Yeon. On Wu Jin's birthday, Dr. Park leaves a present for him and heads out for the recording a television discussion program.
Wu Jin is spending a lonely birthday, but to his surprise, Seo Yeon, who left the country for studying abroad, is standing before him. She says she came to celebrate his birthday together. They spend the night together drinking, which he shouldn't do as a part of the treatment.