Mizunami

prolly not what u r looking for but: https://www.mangago.zone/read-manga/it_s_mine/

yuri .Hentai .yaoi.???

all

Just a romance ,shoujo ,and a little bit yandere that's all

Miniamaru Kareshi, shoujo manga where the ml is yandere

PSYCHOLOGICAL
bl
- http://www.mangago.zone/read-manga/psycho_young_dream/
- http://www.mangago.zone/read-manga/obey_me/
- http://www.mangago.zone/read-manga/killing_stalking/?av=2
- http://www.mangago.zone/read-manga/interview_with_a_murderer/
- http://www.mangago.zone/read-manga/cut/
- http://www.mangago.zone/read-manga/similar_terms/
- http://www.mangago.zone/read-manga/moritat/
- http://www.mangago.zone/read-manga/criminal_interview/
- http://www.mangago.zone/read-manga/hotel_phryne/
- http://www.mangago.zone/read-manga/interview_with_a_murderer/

nonbl; little to no romance
- http://www.mangago.zone/read-manga/an_uncomfortable_truth/
- http://www.mangago.zone/read-manga/save_me/
- http://www.mangago.zone/read-manga/bastard_hwang_youngchan/
- http://www.mangago.zone/read-manga/hwaja/
- http://www.mangago.zone/read-manga/metronome/
- http://www.mangago.zone/read-manga/hanged_doll/ (this is rather creepy than dark)
- http://www.mangago.zone/read-manga/subtle_disaster/ (read on line webtoons)
- http://www.mangago.zone/read-manga/my_student_can_t_be_a_psychopath/

hetero
- http://www.mangago.zone/read-manga/head_over_heels/

YANDERE/POSSESSIVE
- http://www.mangago.zone/read-manga/kusatta_rasen/
- http://www.mangago.zone/read-manga/hikizuru_oto/
- http://www.mangago.zone/read-manga/imitation_mate/
- http://www.mangago.zone/read-manga/mujintou_ni_motte_iku_nara/
- http://www.mangago.zone/read-manga/stalker_s_game/
- http://www.mangago.zone/read-manga/deichuu_no_hasu/
- http://www.mangago.zone/read-manga/obey_me/
- http://www.mangago.zone/read-manga/ibitsu_no_kakera/
- http://www.mangago.zone/read-manga/yami_bl/
- Ch5: http://www.mangago.zone/read-manga/kanchigai_lokidoki_koi/
- http://www.mangago.zone/read-manga/individual_diet_preference/
- http://www.mangago.zone/read-manga/poison_and_sex/

i tagged these mangas as 'psychological' and 'twisted' which may or may not have a yandere character, but the overall theme and ambiance are similar