The Red Rose of the Family( Brothers Conflict)

Rosalie Hinata is Ema little sister. They are both the same age. Five years before her father Rintarou Hinato married Miwa Asahina, Rosalie had received a scholarship to another school from America. She decided to follow her dreams and go to school in America which means she had to leave her family behind. Rosalie was quite happy to find out that her father was getting married to a woman like Miwa and also happy that Ema won't be alone anymore since she now had thirteen new brothers.
Eight months after her father and Miwa's wedding, Rosalie recieved a phone call
 Who is calling her?
 Why did they call?
 Will she follow their request?
 How will the brothers react to their new sister?
 What will her new family think about her?
 Will she fit in?
 Will she catch someone's eye? Maybe more than one eye?
 Will love bloom in the family even though they are considered to be brother and sister?