| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 28sai karano riaru | 978-4-87290-146-7 (4-87290-146-0) | 2007 |
| Real from the 28-year-old illustrated ISBN: 4872903625 | 978-4-87290-362-1 (4-87290-362-5) | 2008 |
| Real from the 40-year-old ISBN: 4872906209 | 978-4-87290-620-2 (4-87290-620-9) | 2013 |