Watch Strike the Blood IV Watch now on Miruro — Free Anime Streaming The fourth season of Strike the Blood. Series info · Watch free · Trending anime · Airing schedule FormatOvaStatusFinishedEpisodes12Duration30 minSeasonSpring 2020Score67/100StudiosCONNECTSourceLight novelCountryJapan Action · Ecchi · Fantasy · Supernatural Nudity · Vampire · Female Harem · School · Male Protagonist · Super Power · Urban Fantasy · Kuudere Strike the Blood (Source) · Strike the Blood III (Prequel) · Strike the Blood FINAL (Sequel) High School DxD · High School DxD HERO · Toaru Majutsu no Index Yukina Himeragi · Kojou Akatsuki · Asagi Aiba (Supporting) · Astarte (Supporting) · Sayaka Kirasaka (Supporting)