Kieran Wu and Ashin Kim were the best couple because they loved each other so much. However, one unknown and unfortunate night, Kieran didn’t wake up and was in coma for months. When he woke up, he was stuck into the past, five years ago, back when he didn’t know Ashin yet. From there on, he forgot that he was engaged to Ashin and thought that the woman he loves is Bianca Lim, his ex-girlfriend who was then his girlfriend, five years ago.