Since you said genre doesn't matter here are some yaoi
Since all the toxic things I have read happen to be
yaoi
https://www.mangago.zone/read-manga/sadistic_beauty_bl_sidestory/
https://www.mangago.zone/read-manga/jinx/
https://www.mangago.zone/read-manga/reunion/ https://www.mangago.zone/read-manga/no_reason/
https://www.mangago.zone/read-manga/killing_stalking/
https://www.mangago.zone/read-manga/if_you_hate_me_that_much/
https://www.mangago.zone/read-manga/my_suha/
Tell me if you need more, i have a whole lot of them
You forgot obey me
Aaaaahhh I have already read all of these ( ╥﹏╥)
Hahahah
Brooo you read the same bl as meeee lol i saw you profile
https://www.mangago.zone/read-manga/obey_me/
https://www.mangago.zone/read-manga/blind_play/
https://www.mangago.zone/read-manga/hogu_hagyeongsu/
https://www.mangago.zone/read-manga/fruit_of_the_tongue/
https://www.mangago.zone/read-manga/stockholm_syndrome/
https://www.mangago.zone/read-manga/the_third_perspective/
https://www.mangago.zone/read-manga/unfather/
I mean, once you get into yaoi there is a whole ocean of toxic mangas in there.
Almost 70% of yaoi are toxic (or maybe I just come across these types of mangas only)
Hahahah true true
Toxic manga/hwa/hua that will make me mad. Genre doesn't matter. TY! :D