The Demon Prince of Momochi House, Vol. 6: Volume 6

The art in this is simply mind-blowing. I don't fit the 'Shojo-Beat' audience, but this series' art, story, characters and homage to Japanese traditions and interesting folk-lore constantly keep me coming back to it. If you're looking for an interesting read with beautiful art and a surprisingly gripping story, for a 'casual' overarching storyline at least, then this is the manga for you.