Purchased a few years ago. This is a 5-subject study drill for first-year junior high school students. It's a set of 20 books in total, including an explanation manual, review notes, a weak point overcoming book, and an internal assessment preparation text. There are some ⭐ marks and ⚪ marks written in various places in the review notes, but it seems there are no writings in the answer sections, so I will ship them as they are m(_ _)m Some books have faded colors or minor stains, but the insides are very clean. It's a text with quite a lot of content, so how about using it for review and preparation during the winter break?