I'm not sure. It could be that the author didn't mention it explicitly, or you might have missed the part where the name was given.
I'm not aware of which 'the name of emily story' you mean, so I can't tell who the author is.
Liu Ruyu's maid was called Liu Sisi.
Liu Ruyu's maid was called Liu Sisi.
Liu Ruyu's maid was called Liu Sisi.
Liu Ruyu's maid was called Liu Sisi.
Liu Ruyu's maid was called Liu Sisi.
Li Changle's maid's name was Sandalwood.
Liu Ruyu's servant girl was Zhao Ke.
Liu Ruyu's maid was called Liu Sisi.