What anime is complete without a good beach episode? Put the story on pause for a second so everyone can get in their swimsuits and frolic about splashing water at each other and doing that watermelon smashing game they apparently love so much in Japan. Of course Louise isn't called Zero just cause she can't do magic, if you know what I mean. She hasn't exactly got anything to show off in the first place, so I don't blame Saito if his eyes are wandering more to Siesta or the elf girl. In all seriousness it's just your typical fan service OVA that doesn't really addanything of value to the series. You can safely skip it and not miss out on much. 7/10