This is Waseda Academy's most challenging problem set (Japanese Language) for 6th grade, first semester. There is some scuffing and creasing on the cover. It comes with the answer key and explanations, and all answer sheets are unused (see photo 4). I have erased any pencil markings I noticed. There may be eraser residue or remaining marks. There are areas circled in red pen (photo 5), which have been erased (photo 6). There are areas highlighted with a marker (photos 7, 8, and 9). I believe there are no other areas with pen or marker markings besides those in the photos. There are traces of tape adhesive on the back cover of the answer key, and I have applied white tape (photo 10). There are traces of a name sticker. Retail price: 1760 yen