The video was downloaded from this VK post https://vk.com/anonymous_witches?w=wall-94984901_55240, which, probably, was itself downloaded from the online broadcast. EVE, AFAIU, is an adaptation of "???" from the previous episode and some extra content Go support the Shingidan Yumeinochi Classics stage group (by buying access to the broadcast on confetti or ordering a DVD or smth), they did an amazing job with this adaptation!