I have a complete set of the Advance Series Japanese Language and Math study texts. Kotoba no Gakushu I (Language Study I) - Noken Center Advance Japanese Language III Advance Unit Completion Test Japanese Language Advance Math II Advance Unit Completion Test Math All answer keys are included. I used these this year for junior high school entrance exams and passed. At the cram school, I was able to use Kotoba no Gakushu, Advance Japanese Language, and Advance Math, which were selected by the school. There are no writings in pen, but there are check marks, dates, etc. written in pencil. I will erase what I can before sending them. There are no writings in the answers. I have put name stickers on the places where my name is written. Please write your name and use them. These are used, second-hand books. Thank you for your understanding. Thank you for looking. This is the final price due to shipping costs. You can buy it immediately without commenting. Thank you.