The character is from Muv-Luv Alternative Total Eclipse which actually started off as a light novel before it got its own Anime show and in turn, one of those dating sim visual novel games. Anime isn't too bad although the plot will probably sound too far fetched. Humans encounte...

If you've never seen Garden of Sinners by Kinoko Nasu then you might know his other works such as the Fate series. I'm quite a fan of the Fate series too so I decided to watch it - interesting how they chose to adapt his short novels into a series of movies instead of a TV series...