It should be step-sister

Anna cleared her throat and ran towards Rose wearing a fake look of kindness, "Sister, you are also here, you didn't tell me your were coming."

She held Rose's hand trying to act all cute knowing Rose would not dare remove her hand from hers before all the other artists but who knew that was exactly what would happen.

Rose peeled her hands from Anna's touch and took of her glasses. "First of all, It should be Step-sister, second I'm not obliged to report my whereabouts to you and third stop being too fake!" She put on her glasses and walked past Anna in a confident manner.

'I knew it, that Anna Lu is so suspicious. Why would sister Rose speak to her in such a manner if she never did anything wrong?'

'That is my queen! Go sister Rose! Show these pretenders where they belong!'

Alot of whispers started in the building as everyone watched how Rose shut Anna in just seconds. One could clearely see there is bad blood between them and it seemed to be Anna's fault.