Jaehyun was a guardian angel whose job was to prevent suicides on earth.

Song Hye Kyo is an angel. Literally.  One of the best angels sent to guide and guard people's souls in South Korea, she always got serious duties, and felt tired of it.  For once, she asked for "an easy job". The Angel's Headquarter (yes, there is a headquarter for angels) gave her "an easy case". A handsome man who got cruelly betrayed by the woman he was planning to marry, until he nearly committed suicide. His name was Song Joong Ki.  Hye Kyo's mission was:

Mike's mom is devastated with the amount of hatred thrown at her son Mike lately, and she went to the biggest temple in Bangkok to pray for his happiness. There, she met an old friend and her daughter, Aom. Aom and Mike went to the same high school, that's why their mothers could know each other and became friends. She hadn't met them for years, and now Aom had became lovelier than ever. Since then, she began to wish for Aom to marry Mike, believing that he will be happy with a good girl by h