After receiving the heart-felt reply from Sung-hyun to help, Eun-joo decides to visit his architectural school. Eun-joo may have hoped to meet him in person and thank him somehow. She finds the architectural department and is greeted by a friend of Sung-Hyun. Eun-joo asked for Sung-Hyun, but was told of a tragic accident. Sung-Hyun was to meet a friend of his, but was involved in a fatal traffic accident 2 years ago. Eun-joo suddenly realizes, on the day, she last met her fiancé before they separated, she also witnessed a car striking a pedestrian and killing him. Sung-hyun was that very pedestrian and the house being built at the beach was designed by Sung-hyun for her. She immediately rushes to the mailbox and sends a letter begging him not to go, also in hope that the message is received in time.