This is a mathematics textbook for second-year junior high school students published by Keirinkan. It is new, unused, and in excellent condition with no writing. There are no creases, so you can use it comfortably. Please understand that this item is stored at home. *I am also selling other textbooks for second-year junior high school students. A small discount is available for combined purchases. Please contact me in advance via comment if you wish to purchase multiple items.