At a recent event for Strike the Blood by Gakuto Mikumo, Japanese fans were getting hyped up at the prospect of a new anime adaptation of the beast battling light novels. There hasn’t been an official announcement yet, but some major news for the series has been rumoured for release on the 15th volume’s obi paper cover. We’ll have to wait till its May 10th publication date comes around to discover if this is indeed true, but if so, either a second anime season or perhaps another OAV could be due soon.
The first anime series directed by Takao Sano and Hideo Yamamoto, with animation by Silver Link and Connect, aired in 2013. The same team also made the two-episode OAV released in 2015. Crunchyroll streamed the 2013 anime as it aired in Japan, and they describe its story:
The fourth Progenitor is the most powerful vampire once thought to exist only in the world of legends. Yet when it appears in Japan, the government for some reason chooses an apprentice “sword shaman”, Yukina Himeragi, to observe and obliterate it. Bewildered by the disproportionate task and its specific details, Yukina arrives at the Demon District of Itogami-jima to watch Akatsuki Kojo, and a student at a private high school on Itogami-jima.