High School Dxd Specials -
Bundled with the Hero Blu-ray, this provides the origin story of how Sirzechs and Grayfia met during the Underworld's civil war. The "Must-Watch" Verdict
Bundled with the DxD DX.1 light novel, this episode features a bizarre conflict involving a perverted former priest and a "bra monster" that the club must defeat. Season 3 ( BorN ) Extras High School DxD Specials
These two full-length episodes follow the first season. One focuses on a vacation to the beach—which ends with Issei in typical trouble—while the other deals with a "breast-shrinking" rumor at school. Bundled with the Hero Blu-ray, this provides the
If you're watching for the , most of the short specials can be skipped as they are purely for comedy. However, the full-length OVAs and the Hero: Taiikukan-ura no Holy special are highly recommended. The latter is especially critical for those confused by the changes made during Season 3, as it helps bridge the gap to the more faithful Season 4 adaptation. How To Watch High School DxD in The Right Order! One focuses on a vacation to the beach—which
The extra content is generally divided into three categories: standard OVAs (which usually act as "episode 13"), short DVD/BD specials, and specific alternate-story episodes.