Nothing hurts more than love. A touring program producer, Min-joo(KIM Ji-soo), and Hyun-woo(YU Ji-tae) are old lovers from college. Whenever and wherever she travels, Min-joo takes notes in her journal, so one day she can show all those amazing places to her love. Finally Hyun-woo passes the bar exam and proposes to Min-joo to marry him. However, not long after, Min-joo dies in a huge department collapse where Hyun-woo makes her wait for him. After 5 years, Hyun-woo, a once-promising prosecutor but now in a detention as he goes too far in digging up a political case, gets a journal from Min-joo’s parents and he is on a road to find all the memories and traces of his lover’s.