I can't believe no one has written a review for this OVA yet! Anyway, I hope people find this review helpful. Firstly, MAL says that there are two episodes to this, which is true, but the two episodes represent the OVAs for the respective seasons of Super Lovers. I found the first one on KissAnime, but I found the second one on Dailymotion somewhere. Either way, they weren't too hard to find.
The plot of these is not really relevant to the overarching story, but they are very enjoyable to watch nonetheless. If you liked Super Lovers, then you will like these two episodes. Both
episodes have basic plots that end with Haru and Ren strengthening their relationship. I like the first one more, personally, because they go on a date and it's really sweet :). The comedic aspect of the series is also present here too, which just makes this OVA that much better. I liked this OVA (and the series in general) because, despite their relationship being kinda weird (the whole brother thing....), both characters are relatively outward about their feelings for each other. Contrast this with an anime like Junjo Romantica/Sekaiichi Hatsukoi, where the main character (Misaki/Onodera) can't get his love off his chest. In my opinion, that's what made this anime a more refreshing entry to the Shounen Ai genre.
TL;DR - If you liked Super Lovers, then you will like this. It's funny, cute, and made me smile like a fangirl the whole way.