You could be watching the Owl. But Ep 24 subs are done now so here goes. Video source is amazon raws, thanks again Lumpstud. There's more unknown names in this one; I think "セイレーン" is "Siren" (like the Greek Mythology ones), but can't find it written out anywhere so could be something else entirely. Some vague mention of "Ixion" and "Cross" towards the end; those could be something else as well.