The point of this OVA was likely a response to fan mail post season 1. It also serves as a teaser for season two without spoiling any story points as its non-canon.
Story - The service club must help Shizuka Hiratsuka with a wedding magazine request. This allows you to see all your favorite female characters and side characters dress up. The story doesn't matter since its non-canon but it does setup a harem-esque ending. For fans of this anime, most people should welcome this OVA as a way to satiate their appetites. Yet I was hoping that there would be more in this OVA than a throwaway episode.
Characters - All the characters act just like they do in season 1. Part of the charm in this anime is that some characters are less superficial and more developed compared to other anime. Expect all the hijinks you would in this light fanservice OVA. Unlike the anime series, you will not find the philosophical monologues from the MC.
The bottom line is that if you are a fan, you should watch this. The reason why I rated it average is because many other anime have done a lot more with OVAs than what we get here. The possibilities are endless. We could have seen more of other characters that get less screen time. The other factors are that it was used to promote/hype the second season. So I also see it was a marketing gimmick as well as a way to respond to fans of the show. Brain Base had an excellent opportunity to do more here but instead what we get is almost a throwaway OVA in retrospect.
