This is a practical report of advanced Japanese language class, which was aimed at deepening students' interests and understanding of Japanese language and culture, as well as their mother tongues. The class analyzed historical changes of the Japanese language, similarities and differences of grammar, vocabulary, words' pronunciation and characters use in different areas of Japan. The participants compared Japanese with their mother tongues and they were encouraged by the instructors to focus on latest Japanese studies. The overall aim was to promote an understanding of multiple cultures and languages in addition to the Japanese language.