Now on sale! We've put it on special. If you're interested, please consider it soon. This is a set of 15 volumes of the Doraemon Mystery Exploration Series. Volumes 1-15 are all included. As you can see in the photos, all the covers are missing. There is a feeling of use, dirt, scratches, and yellowing due to aging, but the inside can be read without any problems. This series has a lot of explanatory manga and is packed with content that's worth reading. The characters from Doraemon, while having their usual funny interactions, learn about things they're curious about along with the readers. I think children from preschool age to elementary school age will enjoy learning from it. Since it is a used item, there may be minor dirt, scratches, and scuffs. Please consider this only if you understand that. *Please refrain from purchasing if you are concerned about minor details. Recommended for those who want their children to learn various knowledge while having fun, those who want to create a children's book corner in facilities where children gather, and those who love Doraemon. Thank you for looking.