This is a set of 10 Rinkai Seminar textbooks for 6th-grade junior high school entrance exams. These are textbooks that my son used at cram school after finishing his exams. They are older items. Some have writing, creases, folds, and stains as shown in the photos, while others are almost unused. The tests can be detached and used for daily study. Names that were written have been blacked out with a marker, and any writing or markings will be left as is. Please only purchase if you understand that these are used items and have been stored at home. Everything shown in the photos is included. Please feel free to inquire about individual sales in the comments. Thank you for looking.