ひかりのくに (hikarinokuni) · 永岡書店 (nagaokashoten)
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Kodomo Ga Nemuru Mae Ni Yonde Agetai Sanbyakurokujugo No Mijikai Ohanashi | 978-4-522-42994-5 (4-522-42994-0) | 2011 |
| Ugoki No Kotoba Ejiten | 978-4-564-00892-4 (4-564-00892-7) | 2010 |