the concept of Uchi Soto is one of the most unique aspects of Japanese culture. This concept is the key to understanding Japanese society and it explains why Japanese people behave the way they do and how they view foreigners in Japan.
So what is Uchi Soto? Uchi (内) literally means home, while Soto (外) refers to outside. The core concept revolves around the idea of dividing people into two groups, a in-group and an out-group.