Ella and Olivia: #4 New Girl

Meet Ella and Olivia.
Big sister. Little sister. Best friends.

Ella and Olivia are sisters. Ella is seven years old. Olivia is five-and-a-half years old. They live with their mum and dad and little brother Max. 
It is the first day of school term and the new girl in Ella's class doesn't seem to like anything! Can Ella change her mind?