suicidal MCs

suicide boy is the only one i know atm it has a good story but the author tricks us a little bit lol

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

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

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

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

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

or so I've been told
https://www.mangago.zone/read-manga/watashitachi_no_shiawase_na_jikan/

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

16647
slow damage
MADK