C3: Outdoor School Confusion

From the light novel series written by Minase Hazuki, comes a story of love, action, and comedy. Yachi Haruaki is a high school boy who is naturally resistant to curses. After his father sends him a mysterious black cube, Haruaki awakes to find a nude girl named Fear standing in his kitchen. She’s the human form of the cursed black cube – and an instrument of torture! Utilizing her special abilities, Fear fights alongside Haruaki to defeat other cursed instruments and their owners.

Four short spin-off episodes included in DVD/BD volumes. Episode 1: よろしくツッチー (Yoroshiku Tsucchi) Vol. 2 Episode 2: なかよしツッチー (Nakayoshi Tsucchi) Vol. 3 Episode 3: がんばれツッチー (Gambare Tsucchi) Vol. 4 Episode 4: さよならツッチー (Sayonara Tsucchi) Vol. 5

Unaired episode included with the third Blu-ray and DVD volume.

A series of 3-5 minute specials that were bundled with the HighSchool DxD DVD and Blu-rays. They are a stand alone set of episodes that are not a part of any story line in particular. Special 1: Going Sunbathing! - The Occult Research Club goes on a beach outing. Special 2: Issei's Private Training! - Issei is being given lessons in magic by Akeno. Special 3: A Little Bold, Koneko-Chan... Nyan! - Koneko accidentally has her personality reversed magically, making her incredibly sexually active and reversing her sexual preference. Special 4: The Untold Story of The Dress Break's Birth! - A few flashbacks of how Issei first found out and eventually perfected his special move, Dress Break. Special 5: Making Udon! - As part of a penalty for losing a bet, Sona and Tsubaki make udon for the Occult Research Club but the udon comes to life in a peculiar way... Special 6: Asia Transforms! - Asia wants to prove she is just as bad as any demon by using ideas found in Issei's magazines, going as far as dressing up like a harlot and seducing him.