The Glory of the Five Dynasties and Ten Kingdoms in Daliao

Tomato Doesn't Have Novels About the Wei, Jin, Southern and Northern Dynasties, the Five Dynasties and Ten Kingdoms, and the Yuan Dynasty, Right?

Looking for a Book

There is a book I read several years ago, but I forgot what it was called. The male protagonist's surname is Chu and the female protagonist's nickname is A Ke. One of the more funny time-travel novels, the heroine must make the hero say the words "I love you" before she can return to reality. Later they seemed to have returned to reality together.