First and foremost, a little history: the Osaka Prefectural Government keeps a list of "harmful" manga publications, which are blacklisted against sale to minors. In 2007 they swept 70 stores to pull some of these magazines; in 2008 they added another six shoujo manga to it-- every time I've ever heard of the matter, it seemed that considerably more focus was being paid to shoujo works than to those aimed at boys.
Not in Osaka, boys!
Earlier this year, in the wake of all the talk of loli bans in Tokyo, Osaka began considering something similar, and also specifically mentioned boys love manga
-- the uber-popular subgenre of shoujo that features boys in love with boys, largely by and for women. And the latest piece of news on the matter? ANN reports
that eight BL manga have been added to the "harmful publications" list.
So, does Osaka just hate female readers, or are they just more concerned about the corruption of their young women than of their young men? It seems to me that given Japan's severe population issues-- super-low birth rate! --they'd be more inclined to enourage women to get in touch with their smutty selves.
But hey, what do I know? I'm just a girl.