There is a scene where a dog is threatened to be killed. It isn't killed in that scene, but a character references that he couldn't take care of it and failed to keep it safe. It is unclear what happened to the dog after that scene.
Eye mutilation is threatened at one point towards a minor. there is a brief clip in a fight scene where a character slashes at another's eyes and blinds him
There is a brief scene where they hunt rabbits off screen and then prepare to eat them. The rabbit bodies are seen but not focused on and their killing is off screen entirely.
A character went by a different name in childhood that he firmly rejects as an adult. A minor character calls him by that name which upsets him and someone else tells the minor character to use the name he has chosen for himself instead.
There is a line where a male character tells another to not cry and be a man. However, this same character cries at several other points of the story and is not ridiculed.
A major character stalks another at the beginning but with little malcontent. However, there are several times when characters are followed and tracked.
There is a scene where a character who had recently died appears to another character in their dream. Another character sees a vision of a character who died before the show, but it is unclear on whether or not that is an actual ghost.
There is also the "Ghost Valley" and the people from there refer to themselves as ghosts, but are not actually.
There is a character named "Corpse Eating Ghost" and there are several allusions to him eating people, however we never see him explicitly engage in cannibalism.
There is a rumor that a main character engaged in cannibalism, but it didn't happen.
Several minor characters reference sexual assault in their pasts. There is a brief scene where a minor character attempts to assault 2 women before being stopped. Another minor character is sexually harassed at one point.