I'll be honest, the only reason I came across this OVA was because of the recently released Moderoid kit of the titular robot. It's also worth mentioning that this is based on a 20-volume long series of light novels, of which a grand total of 0 volumes have been translated to English. The OVA tosses you into a story that's already in progress with some narration to tell you what happened beforehand. The OVA is pretty much just flat out telling you "wanna actually get the full story of what happened before, and see where these characters go from here? Find out in the novel!"
It's due to this format that the story kinda stutters and doesn't really show off much. The attempts at comedy aren't all that great, I had a chuckle or two but most of the time it fell flat. There's a lot of setups and possible scenarios they could've done with the premise of an alien corporation coming to attack Earth, but because of the length, nothing really gets fleshed out enough, although you get the feeling that some of those untouched threads are more teasing for things that the source covers more.
There are some positive elements though. The art style is nice and a pleasure to look at even when the animation isn't always the most solid. Ariel herself looks great in the few combat sequences she gets during the OVA, with some awesome close-up shots. Overall, looking at the OVA for what it is (an ad for the novels), it does a pretty good job at that because now I’m interested in knowing more of the hijinks these characters get up to. But as a standalone work, it sadly falls flat, leaving you wanting more when there isn't much you can get if you don't know Japanese. I’ll definitely check out the second OVA at some point, but I honestly would prefer if the novels were more accessible, as it seems that’s where the meat of this franchise truly lies.
