This is my first review ever. Even if I have watched some animes which had harem, none of them surprised me like this one (in a positive way).
Why? It has those nice surprise moments when it left me several times with an open mouth.
The story is good for such an anime. I enjoyed the different characters, each with a different personality. Even if it doesn't say that it's ecchi, the anime does give some fanservice.
So if you're an harem/action type, it's worth to watch it.