Private Tutor (1963)

Two half brothers love a private tutor hired by their parents. She is more fond of the younger brother who's jovial and honest than the older brother who's unmanly and timid. But she cannot choose any of them because she's afraid that she would cause more trouble between the brothers who already hate each other. She tries first to make the brothers come to terms with each other. When this is done, she gets married to the younger brother she has loved.