Strike the Blood: Valkyria no Oukoku-hen
English title: Strike the Blood: Kingdom of the Valkyria
Japanese title: ストライク・ザ・ブラッド　ヴァルキュリアの王国篇
Type: OVA
Episodes: 2
Source: Light novel
Genres: Action, Fantasy, Ecchi
Studios: Barnum Studio, SILVER LINK., Connect
Producers: Movic, Warner Bros. Japan, KlockWorx, ASCII Media Works, Hakuhodo DY Music & Pictures
Duration: 23 min per ep
Rating: R+ - Mild Nudity

It was officially announced at the Dengeki Game Festival 2015 event that Strike the Blood will be getting a two-episode OVA series to be released at the end of 2015. The OVA will be an original story written by Gakuto Mikumo.

(Source: MAL News)