I have stored this item in a sleeve, but it has been stored by a private individual. I have confirmed that there are no stains or damage, but this is a personal inspection. If you are concerned about the above, please refrain from purchasing. Please note that I am also selling all types together separately, so please be careful when purchasing in bulk. I am also selling other Nintama Rantaro goods, so if you would like to purchase them together, please apply. I am also looking for someone to purchase this item elsewhere. Thank you.