As a child, he asked his aunt, "Will you marry me when I grow up?" But the idea was preposterous since she was a minor immortal from the Immortal Yin World and could not engage with a young human boy. Fast forward 500 years, and she found herself congratulating the Yang Demon World's young lord, Li Ye, on his wedding. Strangely familiar, the woman he was marrying was the mortal body she left behind in the human realm. However, Li Ye failed to recognize her and attempted to have her killed. Should she reveal the truth and smack his handsome face?