Answer:
me and my brother created a contract to agree that we would not destroy each other's block build (toy block things u see everywhere) and then he destroyed mine sadly ;-;
They find out that they are on opposite families and in their world they are not allowed to date if that is true. The story and/or movie shows and states the scene of the act.
Telling there part in what they believe are think is true are right equl to everyone.