Yin Xi, who happily returned to Hong Kong for summer vacation from a foreign country, suddenly returned to his old home before immigrating on a whim. He mistakenly took the problematic elevator and returned to ten years ago. . .
At the age of 19, the wealthy young man Zhao Feng, who had just graduated from a university in the UK and returned to Hong Kong, received a promise from his father to give him three years of freedom. Mistaking Yin Xi for being a person sent by his father, Zhao Feng picked up Yin Xi who fainted and took her home. . .