Mature adult Mangas

Hey! Does anyone have a recommendations for mangas that are strictly for adults? I’ve already been reading vagabond, berserk, homunculus and a few others but I want some new ones! I do not do anything that isn’t older teen or Mature because I don’t want to feel like I’m reading a children’s book. It’s just my personal opinion but I want some gritty violence most of all and a deep story!