"Problem Collection to Cultivate Mathematical "Thinking Skills" Necessary for Future University Entrance Exams" Kawaijuku Mathematics Department Price: ¥1300 #KawaijukuMathematicsDepartment #Book #Nature/Mathematics Thank you for viewing. Although there is no sign of use, there are some wrinkles and scratches on the cover. Also, as shown in the fifth photo, there are some parts marked with a highlighter. I tried to check the condition carefully, but there may be oversights. Please understand and purchase. If you are at all concerned, I am very sorry, but please refrain from purchasing m(_ _)m ♥ The cover has been wiped with a disinfectant wipe. * We cannot change the shipping method after purchase (＞_＜)"