Once In A Summer (2006)

A beautifully-shot, heart-warming love story starring Lee Byung-hun (Everybody Has Secrets, JSA) who embarks on a quest to find out what happened to his first and only love (Su-Ae), who had mysteriously disappeared years ago. When still in college, Suk-young (Lee) then traveled with student volunteers to a remote village in the countryside in an attempt to escape the supervision of his strict father. He met the beautiful Jung-in (Su) there, and it was love at first sight. However, as the summer drew to a close, the couple faced a challenge to their willpower.