Discussion of communication in cross-cultural understanding, research theory in a broad scope. The study was carried out from two points of view regarding the problems that occurred. Not only from a linguistic perspective, such as language accuracy, or sociolinguistics that are needed when solving problems. Solving these problems is also related to socio-cultural understanding. This understanding is learned through case studies followed by discussion and reflection activities. Learning is carried out through lectures and discussions, as well as creating articles related to Gengogaku gairon and understanding Nihon Shakai to Bunka