Fucked up yaoi manga? Done with harada's works.

nothing beats harada but this is pretty twisted too:
http://www.mangago.me/read-manga/tourou_no_ori/

asada nemui's works are pretty fucked up but good

http://www.mangago.me/read-manga/ani_no_chuukoku/
http://www.mangago.me/read-manga/my_god/
http://www.mangago.me/read-manga/my_little_inferno/

http://www.mangago.me/home/mangalist/1023860/

Yess! I couldn't agree more. Her/His work "my god" first story was totally fck up. It surely blow mind

http://www.mangago.me/read-manga/mitto_mo_nai_koi/