Oi-san to 40 no Monogatari
Japanese title: オイさんと40の物語
Type: ONA
Source: Original
Episodes: 41
Status: Finished Airing
Aired: Mar 26, 2018 to Sep 19, 2018
Duration: 6 sec per ep
Rating: G - All Ages
Studios: Marui Group
Genres: Slice of Life

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.