Black Diary Case 4 & 5
| Relation | Black Diary |
| Title | Black Diary Case 4 & 5 |
| Type | Partial |
| Language | English |
| Publication | Non-free, doujin |
| Platform |  Apple iProduct |
| Medium | Internet download |
| Released | 2015-10-03 |
| Age rating | 9+ |
| Developer | Azuneko Studio |
| Publisher | Azuneko Studio |
| Links | App Store |