This is my first review it will have bad grammar. So please try to deal with it.
Story: There really is no story its really just a gag anime full of randomness but to best sum it up it Follows the daily lives and details the eccentricities of Date Masamune, Uesugi Kenshin, other famous territorial lords, and their followers during Japan's Warring States period. You don't really need to learn about Japanese history or any of the historical figures. Honestly if you know alot about Japanese history then you'll probably get more enjoyment.
Art/Animation: the Anime of the artwork is pretty good While the animation its acceptable
but, the problem is the movement of the animation seems to look a bit choppy and it also looks more like a flash animation as well but that really isn't a bad thing in my opinion.
Sound: I really can't say much about this department but lets just say its overall in the Anime the sound is okay nothing special
Characters: Oh I just love the characters a lot! Espically Masamune, Date in the old days he is called the one eyed dragon due to losing the eye. In this little gag Anime he is known to lose his eye in a very way and has a crazy eye patch fetish Nobunaga Oda is his evil self and Mitsuhide According to Japanese history he was suppose to betray Nobunaga but instead gets caught trying to betray him. Unfortunately I do not know any of the other historical figures but all of them are so funny they all have such funny personality's you can't help believe they were important people that established japan!
Enjoyment: When you probably see the thumbnail of the anime you'll probably think "wtf? this Anime looks like a crappy OVA" don't think that just give this OVA a try don't judge until you see. Even, if you don't know any Japanese history you'll still get a few laughs out of it. I enjoyed quite a bit that it actually makes me want more of this little gag series. It was originally a 4-koma manga that is still running I think. Its too bad that there is not Manga scanalation team to translate the Manga I enjoy it that much that it makes me want to read the original manga.
Overall: I enjoyed it a lot With no knowledge of any of the historical figures it might be hard to get some of the jokes at times but that doesn't mean its not watchable. Some people will most likely dislike this OVA but just give it a try you'll definitely get a few chuckles then and there.