Please recommend any dark themed manga not horror but like a dark romance.
PRIDE (knock) by knock is really good. The romance is amaizng if you're into yaoi and it has lots of dark themes. I really recommend it (⌒▽⌒)
http://www.mangago.me/read-manga/itou_san_kuraka_sui/ and of course anything by Harada
Please recommend any dark themed manga not horror but like a dark romance.