HK DVD rip with Russian v/o fandub: AnimeGroup
Russian subs: Asny
HK English subs (external): edited by an unknown group, retimed by Al_Sleeper

It is recommendable to activate a deinterlacing filter in your player. This release, which it seems is the only one available, is not deinterlaced properly.

You should watch this before: https://nyaa.si/view/936299
After watching this ova, you should watch: https://nyaa.si/view/936355