Yotsuya Otsuka Yonka no Matome - Arithmetic This item was not available for general sale, so I purchased it through a student attending Yotsuya Otsuka. It seems to cost over 4,000 yen on Amazon. I am selling it because I will be attending a different cram school and will not be using it. Please consider this item if you understand that it has been stored at home and has been inspected by an amateur. The current condition takes precedence in case of any oversight. Please refrain from purchasing if you are overly concerned about details. #JuniorHighSchoolEntranceExam #AdvancedStudy #Workbook #Textbook