I saw some episodes of an anime some years ago, and I can't remember very more things about it. I know that there were some guys, or one guy in a sort of suit with a gun and there was a girl with him. I think she was red-haired. And that guy had some kind of feelings for that girl. I think it was all in the future, something with the world destroyed. And then there was this ending with the girl I've described, something similar to Evangelion, she was walking topless trough the water. I was a little kid then and I hope that my memory doesn't cheat me and I am not talking about Evangelion. Some suggestions?