Do you know the manga/anime One Piece?
Its one of the most successful mangas in Japan right now. Sales of its books top the book charts each time a new one comes out with total sales far exceeding sales of the title in the 2nd position. Its quite amazing.
I wouldnt consider myself a hardcore fan [there are a lot of them! Takuya Kimura from SMAP is known to be a massive fan] but i do read it weekly in JUMP digest magazine and try to stay up to date.
And before anyone asks..no i dont make chara-bentos XD i dont have children and my husband does not really want a character bento LOL.