I’m not entirely sure about that but apparently a lot of people looked forward to watching this OVA (and, consequently, a TV we’re having next season). We jumped on this train just now and watched all three available episodes in a row. To be honest, I don’t know what the exact purpose of this OVA is – it’s cute and well-drawn but I didn’t find anything that would make me counting days until the TV starts. In theory, the OVA contains a completed arc about main heroine’s childhood but the authors still left some questions unanswered – for example, who destroyed the library (maybe that’s not so important, though) and didn’t even try to imply that they’re going to reveal everything later. “Magus’ Bride” looks a bit like “Uprooted”, a bit like Natsume (I can only trust my wife here, haven’t watched a single episode), a bit like a high-budget hentai prequel and, although the hentai part looks promising, at least for the time being I’m not going to watch the TV, hopefully, the fall season looks promising even without this anime.