Ghost Gate, A mail from my dead lover (Yaoi)
You might like these
Black Mirror
Killing Stalking (Yaoi)
this is not fucked up but it has a good story: https://www.mangago.me/read-manga/sankaku_mado_no_sotogawa_wa_yoru/
the summer hikaru died
Most definitely https://www.mangago.me/read-manga/feeding_lamb/
Just like the title says I'm looking for BL manga/manhwa/whatever with horror elements. Can have gore can have the most fucked up shit you have ever read just give me whatever you have. I believe in you mangago people