Bre

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

http://www.mangago.zone/home/mangalist/1090460/

https://www.mangago.zone/home/mangalist/1195145/

http://www.mangago.zone/home/mangalist/1103164/

http://www.mangago.zone/home/mangalist/636848/

https://www.mangago.zone/home/mangalist/957720/

one of my faves~

http://www.mangago.zone/read-manga/kusuriya_no_hitorigoto/

wait this is not bl. sorry i didn't see!! ╥﹏╥

Black Mirror

These had the tag Mystery but I dont really remember If they are considered as mystery genre
http://www.mangago.zone/read-manga/wolf_in_the_house/?MW4M
http://www.mangago.zone/read-manga/a_man_like_you/?EB3P
http://www.mangago.zone/read-manga/body_electric/

Http://www.mangago.zone/read-manga/black_mirror/

http://www.mangago.zone/read-manga/hotel_phryne/

http://www.mangago.zone/read-manga/the_planet_walks_alone/

http://www.mangago.zone/read-manga/the_beast_must_die/?VH0Y

http://www.mangago.zone/read-manga/truth_or_dare/?OklO

http://www.mangago.zone/read-manga/foul_smell/

Criminal Interview
Hotel Phryne
Stigmata - Aikon
Stigmata - Seikon Sousa (sequel)
The Beast Must Die

http://www.mangago.zone/read-manga/a_man_like_you/?hCyR
http://www.mangago.zone/read-manga/secret_hearts/
http://www.mangago.zone/read-manga/hotel_phryne/

I love that so many of us have reccomend Hotel Phryne. It's so underrated!