The second season adapts the third and fourth volumes of the light novels, with its episodes split between two arcs: The Excalibur of the Moonlit Schoolyard (月光校庭のエクスカリバー, Gekkō Kōtei no Ekusukaribā) and The Vampire of the Empty Classroom (停止教室のヴァンパイア, Teishi Kyōshitsu no Banpaia).
In North America, the anime series is licensed by Funimation for simulcast on their website and home video releases on DVD and Blu-ray.
The closing theme for the first arc of the second season is titled Hōteishiki wa Kotaenai (方程式は答えない) and performed by the Occult Research Club Girls (オカルト研究部ガールズ, Okaruto Kenkyū-bu Gāruzu), which is a voice actress unit consisting of Rias Gremory (Yōko Hikasa), Akeno Himejima (Shizuka Itō), Asia Argento (Azumi Asakura), and Koneko Toujou (Ayana Taketatsu).
The opening theme for the second arc of the second season is titled "Passionate Argument" (激情論, Gekijō-ron) and performed by Zaq.
The closing theme for the second arc of the second season is titled "Lovely♥Devil" (らぶりぃ♥でびる, Raburyi♥Debiru) and performed by the Occult Research Club Girls, which also features Xenovia (Risa Taneda) and Gasper (Ayane Sakura).