This is "Slasla Wakaru PHP" by Hitomi Shida, published by Shoeisha. I purchased it a few years ago and read some of it, then stored it at home. There are no markings. It will be shipped wrapped in bubble wrap. Instant purchase is OK, but please read the following items first. * Although it has been stored in a dark place at home, it is considered a "used item." Please refrain from purchasing if you are sensitive to this. * Returns and refunds are not accepted after the product arrives to prevent issues such as product substitution. * We are not responsible for any accidents or damage after shipping. * We will ship as quickly as possible, but replies and shipping may be delayed. Please purchase with some leeway in the number of days. Please consider purchasing only if you understand the above.