The Ova will launch in November 23.
Mere hours before the launch of the first OVA of Strike the Blood, Warner Brothers japan has uploaded the first 3 minutes of such OVA and the opening of such material.
The Next release will be by December 21 and the others in March and April of next year.
My Anime List describes the story as follows:
“Kojou Akatsuki’s days as an ordinary high school student in the Demon District of Itogami Island come to an abrupt end after a fateful encounter leaves him with the remarkable abilities of a vampire.
It isn’t long before he is thrust into the center of attention when it is discovered that he is the fourth primogenitor, an immensely powerful vampire whom most consider to be merely a legend. Fearing Kojou’s destructive potential, the Lion King Organization sends in an apprentice sword-shaman, Yukina Himeragi, to monitor, and should he become a threat, kill the boy deemed the world’s most powerful vampire. Forced together by circumstance, the two form an unlikely alliance as Kojou comes to terms with his abilities and they both struggle to protect the city from various emerging chaotic forces.”
Via: ANMTVLA (Spanish)