Following traditions.

It's 1947 and a well-respected family is living in peace. The son is supposed to inherit the house, as traditions go, but he doesn't want to. He wants to pass it onto his younger and blood-related sister, but she's already looking at houses with her fiancé. Their younger sister is not related to them by blood, she's a foster child, and a woman, meaning they would have to break traditions to let her inherit the house. This family has always been the one to follow traditions: girls learn to cook and clean, boys go to university, women stay at home making dinner and cleaning the house, men go out to work and earn money for the house. How can they break traditions now?
Thank you to @_bugzy_ for creating the book cover! I was using an old one before that didn't really work that well and this person has created a much better one!