So we got a good ol' sci-fi 90's OVA's with minimal plot and fairly forgettable action and characters produced by Teoi animation and... J.C Staff? Don't they usually only do crappy schoom romcoms? well apparantly they did some crappy sci-fi OVA's as well and one of them is this little gem? Well not really, I'm sure all 9 (currently) other people whov'e actually seen this will agree that there was a reason it has been forgotten.
Story- Now there isn't anything inherently bad about this, its just that it isn't at all memorable. So the story focuses on the crew of this submarine. They're brought to the underwater city of Mu to protect it from invaders. Underwater submarined fights ensue...
Animation- This could have easily been a 80's or maybe even 70's anime, but honestly it wasn't really that bad. It was pretty fluid for the most part and the monsters and character designs were fairly decent.
Sound- Nothing memorable, average voice acting
Characters- Not much to say about the characters, the "main" character Kenji is a fairly brash young officer in what I'm assuming is the Japanese navy. Goro is another one of the navy officers who is more order and kind of acts like the captains aid. The captain himself Yohei, is your fairly average oldman type character. Then theres the Queen of Mu, Chaika who doesn't really do much aside from bring them their to help and Kenji also has this love interest girl but that doesn't really go anywhere considering the length.
Overall- Very predictable and only midly entertaining, your not using out on much by not watching this.