Juujika no rokunin
https://www.mangago.zone/read-manga/pumpkin_night/ Probably won’t give u inner peace but it’s DEFINITELY brutal
https://www.mangago.zone/read-manga/ijimeru_aitsu_ga_waruinoka_ijimerareta_boku_ga_waruinoka/ - its not that brutal or anything but he does take revenge
https://www.mangago.zone/read-manga/misu_misou/
https://www.mangago.zone/read-manga/fukushuu_kyoushitsu/
https://www.mangago.zone/read-manga/nito_s_lazy_foreign_world_syndrome/
spoilers
the mc was bullied and committed by jumping off a roof, he reincarnated and saw all his classmates (the bullies were also apart of his class) all standing in front of some king, he was somehow in some place with magic. he had gotten the weakest power; a healer. again, he was made fun of. he left them, went his own way and just got stronger; the story just goes on from here
Everybody thankyouu ╥﹏╥
I need some brutal revenge manga , the mc was abused/tortured/bullied etc. So the mc takes revenge on the ones who did it, i just need to read something that will give me inner peace (=・ω・=)