yaoi but one is a serial killer :)?

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

Just be warned ╥﹏╥
Almost all of them contain very disturbing stuff

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

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

Ummm... This one's a bit different
The serial killer is a side character
The story is bomb though
https://www.mangago.zone/read-manga/dark_heaven/

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

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

Not a serial killer, but he was born and raised to be one
https://www.mangago.zone/read-manga/kimi_no_yoru_ni_fureru/

For now, he's just a murder suspect
https://www.mangago.zone/read-manga/murder_on_sunset_19th_street/

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

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

If killing characters in a horror game counts, this one is a serial killer too
The vibe is there
https://www.mangago.zone/read-manga/dreadful_night/

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

thank you!!

And thank you as well