Brothers and sisters often fight with each other, but they rarely kill each other. However, this is not the case with these two.
The sister is obviously soo much bigger than her brother. He annoyed her and now he is going to pay for that. She will eat him and this will be the end. She is too mad to care what will happen to her little brother.
Credit to Karasu68
Is… Is that the girl from the first Carebears movie?