Soojung thought her life was so cruel. she lived without knowing that she had a perfect life, actually. During the pas sixteen years of her life, she thought that she need a time machine to correct her past mistake. Not until he met Kim Jongin. Is she still need her time machine?

Jongin thought his life was so amazing. He didn't care what people said about him. During the past sixteen years of his life, he thought that he didn't need a time machine. Because he thought that his life was an opportunity and life must go on. Not until he met Jung Soojung. Will he need his time machine?