1866 (it potrayed as late era in korea where homosexuality are a crime and.. No spoil but the ending hurt me so badly and feel pity about something that only on screen but maybe there's someone who already having those fate since it's refers in real life event)
Anything about harada work (if you want dark romance or you are dark romance girly then harada sensei is the absolute you must read, the way the author plays with manipulation even potraying how toxic love can be and everything will be forgiven if you were doing it because of "love" Even the victims accept apologies because the perpetrators were "in love" With them that's fucked up
Checkmate IS SO GOOOOOOOD
I'd say these two -
Two in Six Billion
https://www.mangago.zone/read-manga/two_in_six_billion/
Ghost of Paradise
https://www.mangago.zone/read-manga/ghost_of_paradise/
Is there a fxxk up BL manhwa/ga/hua that you can't let go and often go back to reread them even though you know it's.. well, fxxk up?? Cuz I have one. It's called Checkmate (TAN).