A set of the mystery novel "Kurokawa no Techo" (Black Leather Notebook) by Seicho Matsumoto, in two volumes. - Title: Kurokawa no Techo, Volume 1 - Author: Seicho Matsumoto - Title: Kurokawa no Techo, Volume 2 - ISBN: 978-4-10-110953-4 - ISBN: 978-4-10-110954-1 Stored at home for a long time. There is some soiling and damage due to long-term storage, but it has been read very little, so there is little sign of use.