Dream or Reality-Michael Clifford

Sierra Martinez has been in the same foster home for 7 years , Braesville Foster Home, since her aunt and parents died. She was only 10 and she didn't have any other relatives left in the U.S. nor Mexico so Sierra was put in Braesville ever since. Her parents were having problems in Mexico before she was born so they came to the U.S. hoping for better opportunities, but one day they died in a tragic car accident and only Sierra survived at 4 years of age. Her aunt Clarissa was the only one left to take care of her. 4 years later Sierra's aunt developed a severe lung tumor that later spread all over her body. Her aunt became very weak and only survived for 2 years. Today was a very exciting day for Sierra, she was going to move in with her new family.

Little did she know one day she was gonna wake up being Calum Hood's sister.
Calum Hood is in a band called 5sos, the band she has been drooling over since she discovered them in Youtube. How do you think she'll take this sudden change?