List of High School DxD episodes

Produced by TNK, directed by Tetsuya Yanagisawa, and written by Takao Yoshioka, the anime aired on TV Tokyo's satellite channel AT-X from January 6 to March 23, 2012.

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).

The fourth season, High School DxD Hero, aired from April 10 to July 3, 2018, adapts material from the ninth and tenth volumes of the light novel and is produced by Passione, using Clip Studio Paint, directed by Yoshifumi Sueda, and written by Kenji Konuta.

During production of this season Ishibumi had the Passione staff read nearly all of the light novels so that they don't miss any inaccuracies and warned them off taking any creative liberties with the material like TNK had.

The ending theme is titled "STUDYxSTUDY" and performed by the voice actress unit StylipS, which consists of Arisa Noto, Yui Ogura, Kaori Ishihara, and Maho Matsunaga.

The ending 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 ending 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).