http://www.mangago.zone/read-manga/nishikaidan_no_akuma/
http://www.mangago.zone/read-manga/yami_bl/bt/248426/Vol1_Ch10/3/
http://www.mangago.zone/read-manga/caste_heaven/ ( Has insane seme's. )
http://www.mangago.zone/read-manga/scarlet/ ( Though it does end kinda happy the seme in the first story gets pretty crazy. )
http://www.mangago.zone/read-manga/ouji_no_hakoniwa/ ( Again, the uke isn't really scared by the seme at the end, but is in the beginning.
http://www.mangago.zone/read-manga/yajirushi/
Usually Ogawa Chise & Harada have some pretty scary seme's. (´ڡ`)b
the seme is (Yeeees) insane and the uke is afraid (not long). It's funny
http://www.mangago.zone/read-manga/m_nano_baka_nano_hentai_nano/
http://www.mangago.zone/read-manga/hanazono_no_kioku/ bipolar
http://www.mangago.zone/read-manga/houkago_no_love_call/ I think a couple of stories...the first story has a scary as hell moment
Let dai as well he may not be crazy but he scares the hell out of the uke...pretty dark though
Thanks you!!!!!!
Not that scared cuz he loves him
http://www.mangago.zone/read-manga/aigan_shounen/
The first "relationship" mostly
http://www.mangago.zone/read-manga/zankoku_na_kami_ga_shihai_suru/
Not really crazy btw incest
http://www.mangago.zone/read-manga/tsuki_yadoru/
One simply zoes not mention ze atrocity such has ze killing stalking.....................has the chapter after he commits(almost) suicide come out yet?
Yaoi where seme is crazy person? Insane? Or scary? And uke afraid of seme?