Task-based Japanese language teaching materials that can be used from the end of the beginner level. Through the practice of project work, students will deepen their understanding of social and cultural themes related to Japan (housing, culture, food, disaster prevention, education, and the environment), acquire operational skills in Japanese, and experience the joy and sense of accomplishment of expressing themselves in their own words. This book is recommended for learners who have finished studying at the beginner level and have knowledge of vocabulary and grammar but cannot use them well. Translation into English, Chinese, and Vietnamese is provided for vocabulary and sentence structure explanations. For general classes that emphasize task-based Japanese language education, as well as conversation and oral expression classes, active learning or task exploration Japanese culture and Japanese affairs classes, and short-term training programs.