One definite problem with a monthly released and slow subbed OVA series that's 13 episodes long is that it takes some serious time to finish. And I just recently finished Isekai no Seikishi Monogatari more than a year after I started watching the show. You're probably thinking wow that's a long name what's it mean well the literal translation is "The Tale of the Holy Machine Wielder from Another World" thankfully many have shortened the title down to just Saint Knight's Tale or even better ISM and the OVA series is a spin off of the Tenchi Muyo franchise which thankfully you don't need to know anything about when watching ISM.
ISM is a lot of things from a mecha show to a school slice of life romcom but what has to be the biggest part of the series is that this is a mega super harem show with added combat goodness. I don't think any one has a larger harem than poor reluctant Kenshi the hero of the story. Kenshi is an Earth boy who's teleported from there to the world Geminar and is persuaded to assassinate a princess using a medium sized white mecha called a Seikijin. He fails at taking out the princess and ends up becoming her servant after the princess and her group of girls find out about his ordeal.
The Princess was on her way to the Holy Land Academy to take classes and she brings Kenshi along for the ride. While the Princess and her troop are off doing their things Kenshi is left to do the servant thing. Soon enough because Kenshi has an uncanny ability to do just about anything like cooking, cleaning advanced combat and survival skills he becomes a highly sought after young lad that has the entire female population of the academy chasing after him. Really they are always chasing after him as he's always running away from them. He's soon transferred from chore boy to being taught to be a male Seikijin pilot and is given a bit more latitude at the Academy.
Life at the Academy is going great but there is a small faction of terrorists and plotters planning something bad and sure enough bad guys take over the Academy and other important places in order to take control and also revive a long lost super weapon. Everyone flees the Academy but regroups to take the fight to the terrorists. In order to do this Kenshi decides to create his own little country on the Princess's ship.
Kenshi and his mega super harem wage war against the evil man and his super weapon and you can guess how that all goes (it all works out in the end) and we're once again left with the harem chasing after poor reluctant Kenshi.
To say I liked this show would be an understatement. I really enjoyed watching the show and loved all the silly and funny bits along with all the fun Harem and fanservice stuff. The battles were OK nothing to spectacular there or ground breaking. I wish there was more music to it but hey can't have everything you wished for. I do wish that they would license the series here but I don't know if that will happen even with it being a spin off of the popular Tenchi Muyo franchise. I know Crunchyroll wont because of the nudity and what not but maybe FUNimation will release a box set.
Check out one of the many and I do mean many trailers for the series on YouTube