Introduction to the villa courtyard: The stairs in Yiju Villa are all double-hanging, which facilitates emergency evacuation in case of emergency. When Chiang Kai-shek lived here, his security personnel and chefs lived in the auxiliary building next to it to provide him with security. Not only that, there is also a row of bungalows built in the courtyard of the villa. Because the courtyard is open and has a good view, the security personnel live here for easy defense.