The person she loved died unexpectedly, leaving only a promise she couldn't keep. The person she fell in love with out of the haze turned out to be the son of her enemy. He was devoted to her, but in the end he could not gain her full trust. He tried every means to get closer for his own selfish desires, but he got himself stuck in the quagmire and couldn't extricate himself. And can he win her sincerity after years of silent waiting?