A slightly different reccomendation thread: a place to pimp titles available here that aren't well known and rarely mentioned, but you think deserve more love.
I'll start with Hyakkiyakou Shou aka Selected Pandemonium. It's another modern Japanese folklore series, this time featuring a high school student, but it's the furthest thing from a shounen action series -- the closest description I can think of is a psychological horror anthology series (even though there's supernatural creatures right and left). Very low gore, very creepy, often amusing.
ETA: I should probably mention it is, in fact, a josei series.
Joe-Bob-Random says "Check it out."