The collapse of a department store disturbs a local community, causing strife for some, and bringing some people closer than ever before.

Ten years after his fiancée, Min-Joo, was killed in the horrific collapse of a department store building, Hyun-Woo continues to mourn her death. One day he receives a visit a from her father, who gives him Min-Joo's diary. The diary describes in detail all of the beautiful destinations she traveled to while working as a TV tour program director--places she had planned to revisit with Hyun-Woo on their honeymoon. Hyun-Woo sets out alone on the trip that Min-Joo had envisioned. Along the way, he repeatedly encounters a mysterious woman, who eventually joins him on his journey.