This is "Foresta." It's a textbook created by thoroughly analyzing school tests to improve grades. It includes a separate answer booklet. There appears to be about 5 pages with writing, as shown in images 4 and 5. Also, there is writing on the homework sheet on the last page, but I don't think there's any other writing. I apologize if I missed anything. There are traces of a name written on it. There are some scratches on the cover, but it's relatively clean. Please check the images. 【What is Foresta?】 ・The Foresta series is a cram school textbook created to "really improve grades" by thoroughly analyzing actual classes. ・Every year, they thoroughly analyze what kind of questions are asked on tens of thousands of regular tests nationwide and where students make mistakes. ・From the content of the explanations and the selection of questions to the amount of questions and the arrangement of each question, it is carefully created to improve grades. Please make your judgment based on the images. If you would like to see any other parts, please feel free to comment. This is a used item. If you are concerned, please refrain from purchasing. Please see my self-introduction. Thank you very much.