The story is devoid of many of the usual cliches. Instead, the characters are given depth, especially the protagonist who tries to be considerate, unsure at first of how his actions are affecting others' feelings. This is a good contrast from the strict roles which most characters are given in anime (or fiction in general), and thus gives a more human face to the drama.
However, I can't say that the story is deep or complicated. This is actually a good thing... just as they name suggest, this is a duo (two-part series) which is about sex first, friendship second, and not much else.
Rather than having some twisted, artificial plot involving magic, monsters, or general mayhem, the story simply involves your typical high-school setup with kids having an excuse to act like adults. This makes the characters much more believable.
Finally, the are is surprisingly good at times... it's not "super duper special awesome", but they are some details and variety in the animation which took a lot more effort that I usually see in a genre known for its use of repeated, limited animations.
So, in summary, I really enjoyed this series, and I think in general it is overlooked... yes, it is only two episodes, and no one feature stands out as great, but, it is enjoyable and a pleasure to watch. It allows me to suspend disbelief easily and just have a good time, and isn't that what entertainment is all about?
So overall, I'd give this a 9/10... the only thing that might make it better is more episodes, or a greater expansion of the franchise... but that's unlikely since what makes it easy to enjoy also makes it somewhat generic and unmemorable. Don't let that be a turn-off, though! This is worthwhile!
