There are many sad songs and movies in Korea. The following are some examples: 1 If Love Has Destiny-The Korean movie tells a touching love story. 2. Love Letter-A Korean song sung by the famous Korean singer group Love Letter. The Eraser in My Brain-A Korean movie about a touching story between two teenagers. The Gift from Room 7-A Korean movie about a boy who sacrifices himself to save his friend. 5 " White Night Walk "-A famous Korean mystery novel that was adapted into a movie and TV series. These are just a few examples. There are many other good sad songs and movies in Korea.