DVD-exclusive specials. The first takes place between episode 4 and 5 of the main series and and the second is a prologue to the series leading up to the events on the last day before the beginning of episode 1.
Up to EP 12MM!Anime
Up to EP 12Jingai-san no YomeAnime
Up to EP 12Shattered AngelsAnime
Up to EP 24AkaKill! GekijouAnime
Up to EP 1Beyond the Boundary: DaybreakAnime
Up to EP 13Xuan Yuan Sword LuminaryAnime
Up to EP 1True Tears: Raigomaru to Jibeta no MonogatariAnime
Up to EP 11The Perfect InsiderAnime
Up to EP 6Princess Jellyfish: Go, Sisterhood Explorers!Anime
Up to EP 26JK-MESHI!Anime
Up to EP 24A Certain Scientific RailgunAnime
Up to EP 13Seitokai Yakuindomo*Anime