Oi-san to 40 no Monogatari
Japanese title: オイさんと40の物語
Type: ONA
Episodes: 41
Source: Original
Genres: Slice of Life
Studios: Marui Group
Duration: 6 sec per ep
Rating: G - All Ages

Fourty shorts featuring a delightfully chubby cat named Oi-san. This entry also includes the unnumbered "はじまり" (Hajimari) episode that was released the same day as the numbered episode 1.