hello

manipulative/obsessive/possessive semes warning!
Color Recipe: http://www.mangago.me/read-manga/color_recipe/ (I mean it was a happy ending for me and the seme...IDK about the uke)
Zetsuai: http://www.mangago.me/read-manga/zetsuai/ (literally every chapter some new angst pops up, but its a really really sad tragedy)
At the End of the Road: http://www.mangago.me/read-manga/geu_kkeute_issneun_geos/?av=1
Kokoro O Korosu Houhou: http://www.mangago.me/read-manga/kokoro_o_korosu_houhou/ (step-brothers)
Koishirazu: You Don't Know What Love Is: http://www.mangago.me/read-manga/koishirazu_you_don_t_know_what_love_is/

+every manhwa out there with a seme with a dark past lol

harada's work is usally twisted and some angst but I would recommend "love mode' the second story its about a uke without any family and hes in highschool and needs to maintain perfect grades to get a scholarship and has a pretty hard life until he meets aoe reji who is a rich business owner

thank you so much