Textbooks used at cram school from November 2025 to January 2026. Set of problem books for students preparing for public combined junior and senior high school entrance exams. Problem books with answers and explanations. Some writing and marks where names have been erased. I mainly used them as notes, so they are relatively clean. Please understand this before purchasing. *Price is not negotiable. *I am also selling other items related to junior high school entrance exams, so please consider them if you'd like. *I will use recycled bags for packaging. Thank you for your understanding.