Strike the Blood: Valkyria no Oukoku-hen
Strike the Blood: Kingdom of the Valkyria, Strike the Blood OVA, ストライク・ザ・ブラッド ヴァルキュリアの王国篇
Kingdom of Aldegyr and the Lost Warlord’s Dominion are holding a signing ceremony to extend their mutual non-aggression treaty. While La Folia is with them, Kojou does not anticipate meeting them as they are busy with work. However, an evil terrorist plot threatens the signing ceremony and it is up to Kojou and Yukina to stop them from succeeding.