This is a set of three: the problem set, the explanation set, and the answer sheet. I am selling these as I no longer need them after finishing high school entrance exams in 2024. I have looked through them and checked for any writing, but there may be oversights. Please understand this. Also, please purchase with the understanding that these are used items. #Waseda Academy #High School Entrance Exam #Sokei (Keio and Waseda Universities) #Mathematics #Japanese #English