I recently watched (and read),
Yamato Nadeshiko Shichi Henge or Perfect Girl Revolution,
a.k.a The Wallflower, which only few people like it, but really, it's worth it. ^_^
It's a beautiful, romantic comedy shojo manga series by Tomoko Hayakawa, it was made into an anime in 2006 w/ 25 episodes.

Story:
It's about a girl named Sunako who was invited by her beautiful Aunt to live with her in her mansion which was housing 4 extremely handsome students from Mori High. To get their rent for free, they must turn Sunako into a "young lady", while her Aunt was traveling around the world. To their dismay, it may be harder than they thought for Sunako's interests involve goth, gore, splatter movies, skulls and the likes. She turned to these things when she was turned down by her first love. But the boys won't give up, so they try their best to turn Sunako-chan into the lady she is.

~This guy is Takano Kyohei, he's among the 4 boys. I just got a scan of the covers and edited it. He's actually the love interest of Sunako, although they're oblivious to it and they often quarrel. He's the only one who can stand Sunako's likes and moods, and is often the one saving her from trouble. The others want him & Sunako to be together coz they think they're made for each other.