Aru Hi Inu no Kuni kara Tegami ga Kite
Japanese title: ある日 犬の国から手紙が来て
Alternative titles: One Day A Letter Arrives from the Dog Kingdom
Type: OVA
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Sep 3, 2015
Duration: 11 min
Rating: G - All Ages
Producers: Half H.P Studio
Genres: Drama
Themes: Pets
Demographics: Shoujo

The original novel and manga adaptation focus on letters sent from deceased dogs to their former owners. The anime adaptation stars P-chan, a dog whose owner abandoned him.

(Source: LiveChart)