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.
This special episode acts as an alternative version of the final four episodes of BorN , helping to realign the anime's timeline more closely with the original light novels. High School DxD Specials
Bundled with DxD DX.2 , this episode follows the BorN season. The extra content is generally divided into three
Similar to the Season 1 shorts, these are 3-minute clips often featuring domestic or humorous moments, like Grayfia in a sauna or the "Church Trio" (Asia, Xenovia, and Irina) discussing undergarments. short DVD/BD specials