Black Diary Case 1
| Relation | Black Diary |
| Title | Black Diary Case 1 |
| Type | Partial |
| Language | English |
| Publication | Non-free, doujin |
| Platform | Apple iProduct |
| Medium | Internet download |
| Released | 2014-07-29 |
| Age rating | All ages |
| Developer | Azuneko Studio |
| Publisher | Azuneko Studio |
| Links | Official website |