Jigoku Youchien
Japanese title: 地獄ようちえん
Alternative titles: Hell Kindergarten
Type: ONA
Source: Original
Episodes: 12
Status: Finished Airing
Aired: Jan 9, 2013 to Mar 26, 2013
Duration: 2 min per ep
Rating: G - All Ages
Themes: Mythology, School
Demographics: Kids

Flash anime shorts that center around a school for mischievous demon toddlers.

(Source: AniDB)