Poplar Publishing Comic Edition: History of Japan Oda Nobunaga Toyotomi Hideyoshi Sakamoto Ryoma Kukai Each: 1,000 yen (excluding tax) No individual sales. Purchased at a bookstore when my child was in the middle grades of elementary school. 4-5 years ago, but the condition is good. Getting into history through comics makes you like history and become good at it. How about it for summer vacation?