Manijeh is Afrasiab's daughter, which means she is the enemy king's child, and she chooses Bijan anyway. Her father's answer is to put him down a pit and put her out of the house with nothing.

So she begs. For years, in villages where nobody knows who she used to be, and carries what she gets to the mouth of the pit. When Rostam finally comes, she is the one who knows exactly where it is and what the rock weighs.