This is a set of 4 books from the popular children's book series, "Oshiri Tantei" (Butt Detective). Perfect for morning reading at school, and great for preparing for school entrance! Poplar Publishing Author: Troll "Oshiri Tantei Series" ・ ① The Purple Lady's Code Incident ・ ③ The Immortal Robbery Gang ・ ④ Detective vs. Phantom Thief ・ The Curry Incident All books have covers. There are no writings inside, but they have been stored on a bookshelf, so there are some scratches and creases on the front and back covers. Please understand that these are used items that have been used by children. List Price: ¥980 #Troll #Books #JapaneseLiterature/Novels & Stories 【Synopsis】 "Oshiri Tantei" is a popular picture book series by Troll. The humorous characters and stories are appealing and very popular with children. 【Series Information】 This product is a set of 4 books from the "Oshiri Tantei" series. Each volume has its own unique story, encouraging reading while having fun. 【Target Age】 This picture book is for preschool to elementary school children, and features fun illustrations and easy-to-understand sentences. It is also perfect for parents and children to read together. - Title: Oshiri Tantei (Butt Detective) - Author: Troll - Series: Oshiri Tantei Series - Language: Japanese