Kim Kwangyeon was always hungry for love. Yoon Aerin was able to give that kind of love to him. The two have always had a special relationship. They shared a common interest which was time traveling.  It was as if they were the only ones that understood each other. It was a nice feeling.  However, love surely doesn’t last forever. Soon, Kwangyeon is left alone once again. This all led to a short period of depression until he decided to get back on his feet. He realizes how he could use the common interest they once shared to be together. Kwangyeon was willing to do anything to be with Aerin again, even if it kills him.