I am currently researching Menburyu, which has been handed down from ancient times in the Kashima region of Saga prefecture, Japan. The history and origins of Menburyu are hardly recorded in books and literature because they are orally transmitted, so they are threatened with extinction in ageing society. For preservation and revitalization purposes, I am exploring the research question "What is Menburyu, its origin, and value?" I conduct research using Japanese, English as a lingua franca, and local dialects, taking a plurilingual approach from a variety of cultural perspectives. Here, my research fields of "heritage management" and "intercultural dialogue" are deeply linked.