You should def read " Weak Hero " , it is a TRUE masterpiece of delinquent/school life/gang fights with a pretty mc, the perfect mixture ლ(´ڡ`ლ)
》《MAFIA/YAKUZA》《
http://www.mangago.zone/home/mangalist/780036/
- Gangs/Mafia/Yakuza
- Seme or uke, maybe both are involved in one of those
- Yaoi or Shounen Ai
Feel free to follow this list for more and if you like it!
Enjoy reading~(ㅅꈍ ˘ ꈍ)
MAFIA
http://www.mangago.zone/read-manga/you_re_my_loveprize_in_viewfinder/
http://www.mangago.zone/read-manga/dispar_4u/
http://www.mangago.zone/read-manga/yondaime_ooyamato_tatsuyuki/
http://www.mangago.zone/read-manga/mitsumei/
http://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/
http://www.mangago.zone/read-manga/burns/
http://www.mangago.zone/read-manga/madman_combo/
http://www.mangago.zone/read-manga/seduction_against_seduction/
http://www.mangago.zone/read-manga/gangsta/ (not yaoi)
http://www.mangago.zone/read-manga/gray_lujun_kazekaoru/
http://www.mangago.zone/read-manga/totally_captivated_dj_mr_sangchuls_diary/
http://www.mangago.zone/read-manga/circle_trap/
http://www.mangago.zone/read-manga/legs_which_cannot_walk/?ov8I
http://www.mangago.zone/read-manga/kobi_no_kyoujin/
http://www.mangago.zone/read-manga/cover_up/
http://www.mangago.zone/read-manga/trap_city/ (MUST READ)
I don't if its school life delinquent or mafia/yakuza or supernatural
Anything doable as long its bl and there's action pow pow pow