Mc has suicidal thoughts but never attempted iirc (it was implied, not really shown). Just thought i put it here coz it’s a masterpiece: https://www.mangago.me/read-manga/payback_1/
Not suicidal but self harm fs: https://www.mangago.me/read-manga/amber_alert/
And sort of suicide would be: https://www.mangago.me/read-manga/a_gloomy_delusion/
Traces of the sun https://www.mangago.me/read-manga/a_trace_of_the_wonder/
https://www.mangago.me/read-manga/form_of_sympathy/ shape of sympathy is not suicidal but the ml/? (Uke) is very very depressed and the mc is doing self harm to get ml’s attention. It’s from the same author of yang ill woo
This is a copy pasted list I used for someone else so it has both bg and bl but everything’s tagged sorry I don’t feel like sorting through rn bear w me
Im dating a psychopath(webtoon bg)
https://www.mangago.me/read-manga/black_chain/
Been a long time since I have read this one so not for sure if mc is suicidal https://www.mangago.me/read-manga/confined_together_with_the_horror_game_s_male_lead/
And im pretty sure the mc in this one goes in and out of suicidalness eventually just becoming numb https://www.mangago.me/read-manga/the_broken_ring_this_marriage_will_fail_anyway/
I spent an embarrassing amount of time looking through other bg I have read to find those but it was slim
If you’re ok with bl,
https://www.mangago.me/read-manga/death_delayed_for_a_short_time_because_of_the_will/
https://www.mangago.me/read-manga/the_hero_wants_to_die/
https://www.mangago.me/read-manga/stranger_2/ They both were suicidal at different points super sweet story though
https://www.mangago.me/read-manga/red_mansion/ Im not sure if suicidal is the right word but mc is crazy
https://www.mangago.me/read-manga/la_meche/
https://www.mangago.me/read-manga/payback_1/ This one, it seems really stupid for the first 30 or so chaps but if you get to the end it is so fucking beautiful the words said to mc when he is finally able to properly grieve
https://www.mangago.me/read-manga/a_gloomy_delusion/ This is a reincarnation bl
https://www.mangago.me/read-manga/again_1/ He killed himself in his first life
https://www.mangago.me/read-manga/father_i_don_t_want_to_get_married/ She struggles w feeling needed in both her first and second life
https://www.mangago.me/read-manga/sweet_shots/ Evb is worried abt this guy
Some of these were alr recommended but there are a few! Sorry fir not sorting them
this is very depressed, with sh and I think he tried suicide
https://www.mangago.me/read-manga/incidentally_living_together/

any recs for bl manhwa w/ a suicidal protag? it feels like i've read all of the mainstream ones (ltit, yang il-woo and i, sadistic beauty, unchanged man... u get the idea), but i want something i can viscerally relate to ykwim ლ(´ڡ`ლ) thank you!!