Challenge 1st Grade Complete 12-Volume Set 2021-2022 Plus 7 Other Educational Materials, 19 Books Total Includes one "Kodomo Challenge Jump Junbi Work" book. Elementary School 1st Grade - Series Name: Challenge - Volumes: 1-12 - Target Age: Elementary School Students - Contents: Study Textbooks - Publisher: Benesse - Language: Japanese - Condition: Good - Special Notes: Complete set No writing inside, but many of the "Red Pen Teacher" problems are missing. Some tearing (see photos).