This item was received from a cousin. It has writing in it from use. Also, the first page of the answer key for the Japanese language section is partially torn, but it does not interfere with studying. The set includes: Japanese, Earth Science Basics, Public Ethics, Mathematics, Japanese History, Biology Basics, English, and Mathematics 1A/1A, for a total of 8 books. If the writing is erased, are they almost unused? Although there is a description of tearing, the areas with text are not torn. The Z-Kai practical mock exams are in a similar condition. Both mark sheets have been used. 8 sets for 5000 yen. Price negotiation is possible.