I’m trying to find a story or novel where two rival families hate each other and are sworn enemies, and each family has several sons. The mother from one family and the father from the other have a daughter together, but she is taken away when she is younger for reasons I can’t remember. Years later, she returns and goes to live with one set of her brothers, who warn her to stay away from the other family. The younger brothers from both sides attend the same high school, and she ends up going there too. At first, she is afraid of the other set of brothers, but they begin to recognise her and realise she is their half-sister. This leads to conflict between the families, with both sides fighting over her and eventually sharing custody, where she spends time living with each family(about a week or 2 weeks at each families house). Does anyone know the name of this story or something very similar?
