Seikon no Qwaser: Jotei no Shouzou
English title: The Qwaser of Stigmata: Portrait of the Empress
Japanese title: 聖痕のクェイサー 女帝の肖像
Type: OVA
Episodes: 1
Source: Manga
Genres: Action, Ecchi
Studios: Hoods Entertainment
Producers: TAKI Corporation
Duration: 23 min
Rating: R+ - Mild Nudity

Based on Ekaterina Kurae's chapter 16 from the manga, and episode 10.5 of the anime.