Obunsha "2024 Edition Eiken Grade 5 Past 6 Exams Collection" Price: 1320 yen (tax included) I have used this book. There are no markings in the problem book. (I have looked through it. I apologize if I missed anything.) No answer sheets are included. There are some folds on the cover, but the inside is relatively clean and I think it is still in usable condition! I am looking forward to purchases from those who understand that this is a used item.