tokyo ghoul
innocent (warning can be disturbing but pretty)
http://www.mangago.me/read-manga/innocent_sakamoto_shinichi/
http://www.mangago.me/read-manga/mahou_shoujo_site/
http://www.mangago.me/read-manga/imawa_no_kuni_no_alice/
http://www.mangago.me/read-manga/akame_ga_kiru/
http://www.mangago.me/read-manga/psycho/
http://www.mangago.me/read-manga/smokin_parade/
http://www.mangago.me/read-manga/whenever/
http://www.mangago.me/read-manga/the_bedroom_girl_the_sculpture_room_girl/
http://www.mangago.me/read-manga/till_dawn/
Any drama, tragedy Manga that doesn't deal with romance?