http://www.mangago.me/read-manga/the_epic_revenge/ this one is revenge but its more of a drama revenge, not killing someone for revenge (not completed but have over 200 chaps)
http://www.mangago.me/read-manga/dungeon_seeker/ this one includes blood killing and yea a isekai revenge (completed)
http://www.mangago.me/read-manga/pumpkin_night/ this one is an actual killing revenge. A lot of gore (not completed yet it currently have 33.5 chaps)
I'd recommend these!!
http://www.mangago.me/read-manga/king_s_maker/?JZ5q (ongoing, fantasy, shounen ai)
https://www.webtoons.com/en/fantasy/tower-of-god/list?title_no=95&page=1 (ongoing w/ shit ton of chps, fantasy)
http://www.mangago.me/read-manga/well_done/ (completed, yaoi)
http://www.mangago.me/read-manga/unfather/ (completed, yaoi)
http://www.mangago.me/read-manga/ranker_who_lives_a_second_time/ (ongoing)
http://www.mangago.me/read-manga/the_perfect_relationship/ (completed, yaoi)
http://www.mangago.me/read-manga/someone_else_s_bl_manhwa/ (completed, shounen ai)
http://www.mangago.me/read-manga/paid_fujoking/ (ongoing, yaoi)
http://www.mangago.me/read-manga/cover_up/ (completed, yaoi)
I want to read some good completed stories about revenge. Something really satisfying. Have you got any? Or something really satisfying in general?
Also I wanted to ask if you know an instagram account which posts good naughty cosplay. I actually followed a link in the comments on some manga and I was hooked but I can't find it anymore so I just ask in general :D