Thank you for viewing! Please note the following: * No individual sales * Immediate purchase OK * Free shipping [Product Details] * Used product, so there may be some sun damage or wear that is not visible in the photos, but there are no problems with reading. * Some products may not have covers. * Please understand that these are used products before purchasing. * Everything in the images is included. [Packaging] * After a simple cleaning, the products will be packaged in basic packaging. [Shipping] * We will ship within 2-3 days of purchase via Yu-Yu Mercari or Rakuraku Mercari. [Other] * No pets or smokers. The "Which is Stronger!?" series, all 12 volumes, picture books/children's books by M.C.C. - Series Name: Which is Stronger!? - Author: M.C.C. - Volumes: All 12 volumes - Genre: Picture books/Children's books - Special Features: Special Edition * Kuso Kagaku Gakuen (Fantasy Science Academy) * Kyoryu Kingdom (Dinosaur Kingdom) Thank you for viewing.