This is a mystery manga series consisting of 15 volumes, known for its unique storyline. I started buying it at the bookstore while the drama was airing. After purchasing, I read it a few times and then stored it on the bookshelf. Volume 15 still has its obi (paper band). I don't think there are any noticeable scratches, stains, or sun damage, but please refrain from purchasing if you are concerned about its storage at home. - Title: Do Not Say Mystery - Author: Yumi Tamura Thank you for looking.