Shinken Zemi Junior High School Course: Basic Concepts Frequently Appearing on Entrance Exams This is a set of five reference books: Basic Japanese, Basic Math, Basic English, Basic Social Studies, and Basic Science. Published in 2021. The digital version on the back cannot be used. Although the covers have some scratches and wrinkles due to long-term storage, the contents are mostly unused and without any writing. Red sheets are not included.