Sort of a Saikano side story... The thing I liked about this is that was was a lot more fixated on the Science Fiction elements I had initially expected from Saikano. This 2 part OVA succeeds in delivering that.This OVA introduces another character of the military side of the story, explaining (but also kind of making confusing) the military point of view in it's exploitation of the Ultimate Weapon and their justifications for doing so in the first place. So, my point is Shuuji and Chise's point of view -> Military point of view = a very good thing. Bottom Line: Watch this if you've watched Saikano.