A set of all 20 volumes of "12-sai." and all 3 volumes of "Koi Suru Shogakusei" by Nao Maita. 12-sai. and others, 12 novels - Series Name: 12-sai. - Author: Nao Maita - Volumes: Complete set of 18 volumes - Publisher: Shogakukan - Series Name: Koi Suru Shogakusei - Author: Nao Maita - Volumes: Complete set of 3 volumes - Publisher: Shogakukan Thank you for viewing. These were read by a child. Booklets are also included as a bonus. Smoke-free and pet-free environment.