| Hatsuinu | |
 First volume of Hatsuinu | |
| 初犬 | |
|---|---|
| Genre | Hentai, Romantic comedy |
| Manga | |
| Written by | Inu |
| Published by | Issuisya |
| Demographic | Seinen |
| Original run | April 22, 2006 – July 11, 2008 |
| Volumes | 3 |
| Original video animation | |
| Hatsuinu The Animation | |
| Directed by | Inu |
| Studio | Pink Pineapple Cafe de Jeilhouse |
| Released | March 25, 2007 – July 27, 2007 |
| Runtime | 30 minutes |
| Episodes | 2 |
| Original video animation | |
| Hatsuinu 2 The Animation - A Strange Kind of Woman ~again~ | |
| Directed by | Inu |
| Studio | Pink Pineapple Office Take Off |
| Released | September 26, 2008 – December 26, 2008 |
| Runtime | 30 minutes |
| Episodes | 2 |
Hatsuinu (初犬, lit. "First Dog") is a Japanese manga written and illustrated by Inu about a series of short hentai stories but "The Strange Kind of Woman" story continues throughout the three volumes. Issuisya has released the 22 chapters of the manga into three bound volumes between April 22, 2006 and July 11, 2008. The manga was adapted into two original video animation series, named Hatsuinu The Animation and Hatsuinu 2 The Animation - Strange Kind of Womans ~again~, respectively.