The only reason why nobody want to write a review about this OVA is either because they watched the 12-episodes series first, which came out a year before, without watching this OVA at all; or because they watched the 12-episodes series first and then watch the OVA and held a grudge upon it afterwards because of the very disappointing previous series, which made this OVA appear to be mocking the audiences' expectation; or because they watched neither of both, despite the fact that this particular one here is actually a good comedy anime out there even though this is just an OVA.
previous Kill Me Baby was pretty much not quite appealing to audiences because of its unfitting slow-paced-old-gags travesty of comedy; this OVA, in a way, made the most of it. Although the rest of the elements of this OVA is just the same as the previous 12-episodes series (OST, characters, plotless background story), the faster pace, the various witticism with its more aggressive (often violent, like "Tom&Jerry violent") approach and the stronger-ly unique characterization, somehow made me laugh more than I expected to compared to when I was watching the first series. Because it was aired after the first Kill Me Baby TV series, however, this particular hidden gem would make you feel like you're watching J.C.Staff's product of redemption, or aplology, or mockery, or carelessness out of sympathy over the series. Name it whatever you want.
It doesn't matter, nevertheless, how bad something in the past could be. If you'd like to see what potentially would be the best comedy anime out there (if you don't mind with 'chibi' characters and random happenings), this OVA would help you.