Is Fan Debiao with Sister Liu?

No. Fan Debiao is one of the leading men in the series "Ma Dashuai" played by Zhao Benshan. He is Ma Xiaocui's fiance and Ma Dashuai's son-in-law. Sister Liu is a colleague of Ma Xiaocui, the daughter of Ma Dashuai, and has a good relationship with Ma Xiaocui. Although Liu Jie and I had some interaction and intersection in the play, they were not together.