This was received when my child took the National Unified Test about a year ago. I thought it might be used and kept it on my bookshelf, but it wasn't used, so I'm offering it to anyone interested. It seems to be a sample of Yotsuya Otsuka's "Preparation Series." It introduces excerpts from four subjects. It has been stored for a long time, so there are some folds. Please refrain from purchasing if you are concerned about minor details. Thank you for your understanding before purchasing. When shipping, I will not take measures to prevent bending (as it is already bent) and will send it in simple packaging, so please understand.