Labeled Tightrope Knot / Hita Shippu This is a two-volume set. After purchase, I read it a few times and stored it in a cool, dark place. Therefore, there are no visible stains or yellowing, but the obi (paper band) of volume 1 has a fold. (Please check the attached images) Thank you for your consideration. I can combine purchases with other items, but I will have to consider the shipping cost for price reductions.