Will tell stories of emotional love and breakups. Ha Young-eun, a manager of the design team at a fashion label who is a trendy and intelligent realist. Yoon Jae-guk, a wealthy and popular freelancer photographer who also has the brains and looks. Hwang Chi-sook is a director of the fashion label’s design team who attended high school with Ha Young-eun and Seok Do-hoon is a skilled PR company CEO.

Jeong Hoon is an anchor of a news show which has the highest ratings. Jeong Hoon’s handsome face and perfect body figure make him look good in a suit. Unlike his gentle appearances, he becomes a tyrant all of a sudden and starts asking aggressive questions to whoever it is. Because of hyperthymesia, he remembers every single thing happening in 365 days a year ever since his childhood. He can’t forget the memory of the woman he loved, Seo Yeon, who disappeared 8 years ago. A rising star who attracts everyone’s attention, Ha Jin, appears in front of Jeong Hoon at that moment. Despite all the attention, Ha Jin doesn’t waver and keeps her confidence. However, she has a secret that her memory is fading away. The man who cannot forget and the woman whose memory is fading away. Will they be able to overcome their difficulties, understand each other, and fall in love at the end?