Hamagakuen (Hamagakuin) - Grade 6 - Master Course Math Theme Materials: 4 books, Practice Materials: 4 books, Practice Material Answer Key: 4 books A complete set of 12 books. There is a lot of writing in the practice materials, and I have checked and erased it, but I apologize if there are any remaining. The practice materials generally show signs of use. However, I believe they can still be used, so I am offering them for sale. The third volume has a crease as shown in the fourth photo. The fourth volume has light creases in the middle of the pages throughout (see photo 5). These creases should not be a problem for using the problem sets. Also, because there was a name written, I have covered it with a white sticker after blacking it out with a pen. We appreciate your understanding of the above points. I am not offering discounts. I want to sell the set as a whole, so I am not selling individual books. I am also not offering holds. Thank you for your understanding.