Anime suggestions please?

Try wallflower! - Kyouhei, Ranmaru, Takenaga, and Yukinojou are beautiful, handsome, young men living in a huge mansion. One day, their landlord, whom they call "Auntie", asks them a favor: to make her niece, Sunako, who's going to be living with them, into a respectable young lady. She agrees to make their living expenses free of charge if they succeed, but if they fail, she'll triple their rent. Due to their confidence in knowing how to deal with women, they agree, but once they meet Sunako, they begin to realize that their lovely living arrangements may soon be in jeopardy ( its really funny because the girl watches horror movies in the dark all day and refuses to come out of her room and her only friend is a human model that you see in science classes which she named and talks to. In one scene one moment shes at a party acting like a perfect lady the next she rips off her dress to reveal a military outfit and a black customized death chainsaw XD )