Tokyo Ravens: Kon ga Oshiete Moshi Agemasu! Maru Wakari Tokyo Ravens
Japanese title: コンが教えて差し上げます！まるわかり東京レイヴンズ
Type: ONA
Episodes: 3
Source: Light novel
Genres: Fantasy
Producers: Geneon Universal Entertainment, Tokyo MX
Duration: 5 min per ep
Rating: PG-13 - Teens 13 or older

Short web specials where Kon explains a bit more about the series and the Onmyouji world.