| title | ISBN-13 | year of publication |
|---|---|---|
| Keiei pawa no kiki: Atsuki kokoro o ushinatte inai ka: bijinesu senryaku sutori | 978-4-532-14314-5 | 1994 |
| Keiei Pawā No Kiki: Kaisha Saiken No Kigyō Henkaku Dorama | 978-4-532-19165-8 | 2003 |
| Senryaku purofesshonaru: Kyoso gyakuten no dorama = Uphill battle | 978-4-478-32042-6 | 1991 |
| Senryaku Purofesshonaru: Shea Gyakuten No Kigyō Henkaku Dorama | 978-4-532-19145-0 | 2008 |