Mardin's one of the most powerful, rough aga, Osman Aga has a daughter called Biricik. He lost his wife at the birth of his daughter and never got married again. Osman Aga never wants her daughter to go to school because of his jealousy but Biricik persuades his father and gets the best degrees in her schoollife. After graduating from high school, she decides to go to university but her father doesn't allow. But without obtaining his permission, Biricik works very hard and takes the university examination. When the results of the exam reach to the house, unlike her father, Biricik gets so happy, she is admitted to Bogazici University. Osman Aga becomes insane because his daughter wants to leave the house and go to Istanbul for education.