“Kiryū Keisatsu: Rōgan Killer” (Volume 5, published 2017) “Kiryū Keisatsu: Hakkotsu Kaidō” (Volume 6, published 2021) Ryōei Tsukimura Hayakawa Mystery World These are the latest two installments in the Kiryū Keisatsu series. Because the paperback editions of this series are released quite late, these two books are currently only available in hardcover. This is highly recommended not only for those who prefer hardcover books, but also for those who have read up to “Mibō Ryodan” and “Kataku” in paperback but can't wait for the rest to be released in paperback! Condition: “Rōgan Killer” shows some signs of use, but there is no noticeable damage, and it is in generally good condition as a used book. “Hakkotsu Kaidō” has some scratches and scuffs on the cover. The main body of the book has no particular problems, so it should not interfere with reading.