This is a set of educational manga, but volumes 16 and 17 are missing. Volume 1: "The Dawn of Japan" - Primitive Era Volume 2: "Building the Kingdom of the Great Kings" - Yamato Period Volume 3: "The Century of the Emperors" - Nara Period Volume 4: "The Flourishing Aristocracy" - Heian Period Volume 5: "The Beginning of Samurai Rule" - Kamakura Period Volume 6: "The Northern and Southern Courts" - Nanboku-chō Period Volume 7: "The Shogunate of Muromachi in Turmoil" - Muromachi Period Volume 8: "The Struggle of Warlords" - Sengoku Period Volume 9: "Unification of the Country" - Azuchi-Momoyama Period Volume 10: "The Establishment of the Edo Shogunate" - Early Edo Period Volume 11: "The World of Townspeople" - Mid-Edo Period Volume 12: "The Edo Shogunate Crumbling" - Late Edo Period Volume 13: "The Dawn of Modern Japan" - Meiji Period 1 Volume 14: "Learning from the West" - Meiji Period 2 Volume 15: "The Course of a Rich and Strong Country" - Meiji Period 3 Volume 16: ※ None Volume 17: ※ None Volume 18: "The Progress of the New Japan" - Modern Era The books are old, so there is yellowing and sun damage due to aging. Thank you for your understanding. For: Students preparing for entrance exams, junior high school entrance exams, elementary school students, history, social studies, manga, comic books, cram schools, home study Boys and girls