Yandere/Possessive seme
http://www.mangago.zone/read-manga/in_the_cage/
http://www.mangago.zone/read-manga/kimi_ga_koi_ni_oboreru/
http://www.mangago.zone/read-manga/hogu_hagyeongsu/?av=2
http://www.mangago.zone/read-manga/last_seven_days/
http://www.mangago.zone/read-manga/may_belongs_to_me/
http://www.mangago.zone/read-manga/ii_mon_waru_mon/
http://www.mangago.zone/read-manga/yandere_hitotsu_yane_no_shita/
http://www.mangago.zone/read-manga/kawaii_senpai_no_kaigoroshikata/
http://www.mangago.zone/read-manga/decision_webtoon/
For more you can follow my Yandere/Obsessive seme/uke list
http://www.mangago.zone/home/mangalist/605077/
please give me a recommendation for the yaoi manga, that story about seme which is very possessive