| title | ISBN-13 | year of publication |
|---|---|---|
| Love is alive in the calyx 2 ISBN: 4091322476 | 978-4-09-132247-0 | 2009 |
| Nankin no Nihongun: Nankin daigyakusatsu to sono haikei | 978-4-272-52051-0 | 1997 |
| Nihon no gisho | 978-4-16-660379-4 | 2004 |
| Raburogu! 2 ISBN: 4091304192 | 978-4-09-130419-3 | 2006 |
| Raburogu!! Next ISBN: 4091320570 | 978-4-09-132057-5 | 2008 |
| Showa Tenno no Jugonen Senso | 978-4-250-91043-2 | 1991 |
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