Re-encounter

Hye Hwa works as an assistant to a veterinarian. Hye Hwa spends a lot of her time saving abandoned animals. One day, while she is out trying to save a dog she sees Han Soo standing in front of her.
5 years ago, Hye Hwa and Han Soo were a couple. At the age of 18, Hye Hwa became pregnant and dropped out of school. Hye Hwa and Han Soo made plansto start a family, but Han Soo suddenly disappeared without warning.
Five years later, Han Soo tells Hye Hwa that their baby didn’t die and was adopted.
(Source: Unknown; Edited by: Charm at MyDramaList))