Strike the Blood: Kingdom of the Valkyria

ストライク・ザ・ブラッド　ヴァルキュリアの王国篇

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.