Strike the Blood: Kieta Seisou-hen is a oVA anime that premiered in winter 2020, produced by CONNECT.

About the production: the story comes from a light novel, there is 1 episode of about 26 minutes and its current status is "finished".

Its main genres are action, ecchi, fantasy and supernatural, with themes such as Vampire and Female Harem.

On AniList, Strike the Blood: Kieta Seisou-hen has an average score of 66%, a good score, and appears on 10,830 users' lists.

While several of the girls investigate Vatlers ship afloat, Akatsuki and Himeragi wake up alone in the school gym with no memories of the day before and no explanation for why they were asleep on the same futon and why Himeragi is wearing an old-fashioned school PE uniform with bloomers. A bloody baseball bat and missing weapon soon deepen the mystery as assorted forces race to solve the mystery of the empty boat, the bloody bat, and the purple bra in the MCs pockets!

Official synopsis from AniList.