http://www.mangago.zone/home/mangalist/815023/ feel free to find stuffs like that in here
Koisuru Boukun
It's a very good manga that dips into reality concerning relationships. It's a subtle development train throughout the manga, but it's there if you pay attention to details. Also, their relationship technically starts in another manga prior to it called "Challengers". So you may want to check that out first. Souichi is a tsundere uke who gives out tough love, while Morinaga is a possessive and kind of manipulative seme. I hope you like it!!! Happy Readings!!!
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
ლ(´ڡ`ლ) can you guys please rec some possessive seme yaoi mangas? or a tsundere uke? thanks