I need dark yaoissssssssss

Not really dark, more of a tragedy

https://www.mangago.zone/read-manga/haruka_tooki_ie/

https://www.mangago.zone/read-manga/torokeru_koibito/

https://www.mangago.zone/read-manga/happy_birthday_1/

https://www.mangago.zone/read-manga/sen/

https://www.mangago.zone/read-manga/koi_kogare_utae

Bad life
Hwang young’s misery

Haunted by desire
Sura's lover
Hikaru ga Shinda Natsu
Black mirror
Caste Heaven ( idk if it'll make you cry tbh)
Reunion (not really dark tho)
Blood bank
Color Recipe
(Any harada works)

https://www.mangago.zone/read-manga/color_recipe/
https://www.mangago.zone/read-manga/lima_syndrome/
https://www.mangago.zone/read-manga/two_in_six_billion/
https://www.mangago.zone/read-manga/deen_my_love/

https://www.mangago.zone/read-manga/nights_before_night/
(this one isn't that dark but it is sad and could make you cry lol)