https://www.mangago.zone/read-manga/pigpen/
https://www.mangago.zone/read-manga/i_will_die_soon/
https://www.mangago.zone/read-manga/shotgun_boy/
https://www.mangago.zone/read-manga/ghost_teller/
https://www.mangago.zone/read-manga/an_uncomfortable_truth/
https://www.mangago.zone/read-manga/monster_child/
https://www.mangago.zone/read-manga/distant_sky/
https://www.mangago.zone/read-manga/suicide_notes_laid_on_the_table/
https://www.mangago.zone/read-manga/the_crow/
https://www.mangago.zone/read-manga/ghost_story_club_remake/
https://www.mangago.zone/read-manga/a_sense_of_amusement/
https://www.mangago.zone/read-manga/brutal_satsujin_kansatsukan_no_kokuhaku/
https://www.mangago.zone/read-manga/drcl_midnight_children/
https://www.mangago.zone/read-manga/innocent_sakamoto_shinichi/
https://www.mangago.zone/read-manga/innocent_rouge/
https://www.mangago.zone/read-manga/apocalypse_no_toride/
https://www.mangago.zone/read-manga/shokuryou_jinrui/
https://www.mangago.zone/read-manga/dai_dark/
https://www.mangago.zone/read-manga/hundred_ghost_stories_of_my_own_death/
https://www.mangago.zone/read-manga/ajin/
https://www.mangago.zone/read-manga/shin_ai_naru_boku_e_satsui_wo_komete/
https://www.mangago.zone/read-manga/mononogatari/
Can someone recc dark/revenge/ adventure manga or manwha that don't have romance at all, prefer if it just full on dark or smth like regressing knght