sooo firstly it's a cool anime but short so thet couldn't make it all into an anime but if u don't be satisfied with anime u could always watch the manga whatever. it's not that uniqe but well it was enjoyable to watch and i liked it. it's like a classic in the anime world(like elfen lied) it includes : ecchi(hell yeah),action,romance,harem and it's op song is very cool :D a must watch what can i say :P