| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Oguri Kōzuke no Suke no shōgai: "Hyōgo Shōsha" o tsukutta saigo no bakushin | 978-4-06-203234-6 (4-06-203234-1) | |
| Sakamoto Ryōma to Kaientai: Nihon o kaeta otoko no bijinesu-damashii | 978-4-06-202517-1 (4-06-202517-5) |