This short OVA works well enough as a nice little side story to the main series. I thought it was a little weird that nobody questions who the cat girl was or tried to attack her for being a beastman. This episode was mixed in on my playlist with the rest, slotted between episode 5 and 6 of the main series, and it felt like I had missed an episode or something because Kamina was treating her like she was someone he knew. Then I remembered that's just Kamina being Kamina and it's just for the joke that he really was dumb enough to fall for her obvious scheme.
The rest of the jokes are fine, but overall it's not like this 12 minutes episode has anything to say that the main show doesn't already have plenty of. If you're like me and this was mixed in with the rest of the episodes it's a fine addition, but you're not missing out on much otherwise. 7/10