Culture shock represents a significant challenge for those moving to a new country, as it involves encountering a different and unfamiliar culture. This study focuses on the experience of culture shock in Japan, based on the authors' six-month experience in the country. The main objective of this thesis is to provide practical tools and suggestions to help individuals adapt more easily to life abroad, particularly in Japan, while preserving the magic of cultural differences. The research work includes a review of theories of culture shock and its common characteristics. Using Japan as an example, it analyses the peculiarities of Japanese culture that can be surprising and sometimes disconcerting to newcomers.