Although in the stories Mu Ying knew from her past life, Princess Shirley was supposed to be taken to the forest to be killed by a Hunter sent by the Queen, and was let go by the Hunter who couldn't bear to do it, unlike now where she ran away from home by herself.
But she still ended up in the forest, and according to the following plot, Princess Shirley should have been tired and hungry, found a cottage belonging to seven dwarfs, eaten their bread, drunk their water, and fallen asleep in their beds.
Even though reality and stories could vary, according to previous Experience, they generally still connect.
Without knowing the full picture of this story, Mu Ying would not intervene in the development of the plot, as it was not her first encounter with twisted plots. Even if she wanted to help, she would wait to understand the whole picture first.