OVA doesn't progress the story as it should but gives more incite into characters and brings back characters from Roswaal's Mansion , as a OVA its very filler like and progresses a side plot which might be disappointing to some but to be fair is better than a cliff hanger and thats what a OVA does, so its still nice to watch if you haven't watched the 1st season recently and be reintroduced to the characters in season 2 hopefully soon (Summer 2019?). Overall great subplot, nice banter, took too long to be fansubbed considering its release in Japan in 2018 October? 9/10 Jihad.