Milanese educator and physician casella possesses a vast library at home. professor casella is highly compassionate and played a pivotal role in teaching romeo to read and write. through his guidance, he opened up a whole new realm of knowledge for the young boy. besides these remarkable accomplishments, he also took charge of bianca martini by alfredos request when the latter was terminally ill. as a devoted father figure, dr. casella cared for her as if she were his own daughter. on saturdays, the doctor visits an orphanage to examine children and ensure their well-being.