Hye Hwa (You Da In) works as an assistant to a veterinarian. Hye Hwa spends a lot of her time saving abandoned animals. If the dogs are not adopted Hye Hwa takes the dog home. One day, while Hye Hwa is out trying to save a dog she sees Han Soo (Yoo Yeon Seok) standing in front of her.
5 years ago, Hye Hwa and Han Soo were a couple in love. At the young age of 18, Hye Hwa became pregnant and dropped out of school. Hye Hwa and Han Soo made plans to start a family, but Han Soo suddenly disappeared without warning. Hye Hwa is told by Han Soo's mother that Han Soo left for Canada.
Hye Hwa felt completely abandoned. When it was time for Hye Hwa to go in labor, she was terrified and experienced difficulties in giving birth. Hye Hwa woke up with her mother sitting next to her hospital bed. Hye Hwa's mother tells her that the baby died of heart failure.
Now, five years later, Han Soo is back and stands in front of Hye Hwa. Han Soo then drops a bombshell. Han Soo tells Hye Hwa that their baby didn't die and was actually adopted. As evidence, Han Soo shows Hye Hwa a document with Hye Hwa's signature stamp giving permission for the adoption. Han Soo also shows Hye Hwa a picture of their baby when it was born.