This is a set of 20 hardcover books. As shown in the photos, some books have no covers, and some have peeling, stickers covering names, and other damage. Also, since they are all used, some have yellowing. There are no major tears, and they are still in a readable condition, so I am offering them for sale. I will consider selling them individually, but the price would be around 500 yen per book plus shipping costs.