Kyoukaisenjou no Horizon: Kyokutou Naruhodo Kouza
Japanese title: 境界線上のホライゾン 極東なるほど講座
Alternative titles: Kyoukaisenjou no Horizon Specials
Type: ONA
Source: Light novel
Episodes: 4
Status: Finished Airing
Aired: Aug 7, 2011 to Sep 29, 2011
Duration: 8 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Sunrise
Producers: Studio Moriken
Genres: Comedy, Fantasy
Themes: School

Specials aired on Nico Nico Douga and YouTube, later released on BDs/DVDs.