Plot/Story: I am honestly not sure where these OVAs are supposed to happen in the timeline of the anime. In the end I think it is best to watch them after the anime. Our well-known cast is sitting in a room and telling each other stories. We'll, 3 stories to be exact...Anyway. Actually that's all you need to know about the plot. The cast is telling each other 3 stories in total, those stories differing in most aspects but keeping one particular thing the same: The appearance of a submarine.
While the main anime is great these episodes are more or less like leftovers from episodes. There isn't any grand plot in them, they are merely there to entertain the viewer who just has watched the main series. Still, each of the three episodes holds some kind of philosophical value. At least I think so, kinda.
Art: Not as polished as the main series, but that's probably the point. Each episode is colored in one single color pattern, each. First episode is blue, the second is red, and the third is white. Why these colors? I have no idea but I'm pretty sure there's a meaning behind that. The artstyle and animation is fairly simple and not refined in any way. I suppose that's also not needed since the focus of these episodes lies in their telling of the story that is unfolding as we watch. Pretty art and animation is not needed. Of course it doesn't look ugly in any way, it's just simple. But even though it is simple it has a certain Charme. One that regular animation and standard art cannot compare to.
Sound: There are no intro or outro songs in these episodes. Doing so would restrict the runtime of the actual content even further so they probably just deemed it not needed. As for sound effects and background music, I feel like it's the same as in the main series. They underline the absurdity of the events and in these three episodes they are not overboard with the music, if at all.
After all, it's the story that is important. Not the sound, or art.
Characters: The characters haven't changed, at all. And that's good. For almost 7 minutes runtime you don't really want the characters from the main show who all already have established character traits to change. Especially in this case they are just telling stories. They do not affect the actual plot in the slightest and are just there to be fun.
At the end though, they are still the same quirky and fun characters that they are, and they are fun to watch.
Enjoyment & verdict: Yes, of course I enjoyed watching it. I did like the main series so liking this one shouldn't come as a surprise. For what it's worth these roughly 19 minutes we're enjoyable and I do not regret watching them. I give this OVA a 7/10 since it was good. That's all I can say. And that's it.
So until the next review, See ya!
