Kodomo Challenge Step (4-5 year olds) for mid-year students. This is a set of two Kids Workbooks. They are from 2019. I have gathered unused workbooks. (This is a rough check, so there may be oversights. Please be aware of this beforehand.) As a bonus, I will also include the main book, but this has had the supplements removed, pages are bent, and it shows signs of use. The workbooks are unused, but they have some scratches on the cover due to being stored at home. Please check the photos and consider purchasing.