This is the complete set of "Prison School" (all 23 volumes). Please consider this item, understanding that it is a used item stored at home. I will ship it in a way that prevents water damage. Thank you. ◆ Please refrain from purchasing if you are sensitive to used items. ◆ We do not accept claims or returns, so please understand this before purchasing. ◆ Packaging will be done using materials available at home.