Servants were not stupid. They could tell where they were within a short period of time. They were sure that since Elder Miss could get rid of Old Master and Madame Gu, she could even drive out Second Lady and Young Master. So they were certain that Elder Miss was going to take over the mansion soon, but they did not say that.
However, Elder Miss gave up Gu Mansion directly.
Faced with the mess, what would the Second Lady and Young Master do with the mansion? One was deserted by the Crown Prince, the other had a mother who killed the Phoenix Girl's mother. They were going to be hated by everyone in the capital.
They would never have a peaceful life any more.
If they could serve Elder Miss, things would be different. Elder Miss was the Phoenix Girl, she was flattered by everyone in the capital and even in the Saint Divine Land. They would have a glorious life, if they served the Phoenix Girl.
So they made up their minds very fast.