Mamono-tachi no Kunou
Japanese title: 魔物たちの苦悩
Type: ONA
Episodes: 12
Source: Manga
Genres: Comedy
Studios: Doga Kobo, AQUA ARIS
Duration: 2 min per ep
Rating: PG-13 - Teens 13 or older

Chibi shorts to Maou-jou de Oyasumi released on the anime's Twitter page.