Responses
Idk if this helps. But I can think of two things that sorta fit this description.
https://www.mangago.zone/read-manga/nidome_no_yuusha/
https://www.mangago.zone/read-manga/the_hero_who_seeks_revenge_shall_exterminate_with_darkness/
Its the 1st one thankk u soo muchh (≧∀≦)
Can u help me? TT I forgot the title of the manga. Supposedly hes the hero of the world, then after he saved the world the citizens killed him since hes nit needed anymore. Then he got reincarnated n wants to take revenge on the world. So he killed n tortured ppl who did him wrong.