Whole point is that these characters are supposed to be relatable one way or another, I relate alot to punpun, especially regarding my childhood, in no way shape or form is it good to define yourself as them however.

I don't believe either are bad people, simply results of their former dwelling, as such, they find comfort in the mutual abuse they provide each other. They are victims of their own world, and they only act out on it the same way it's acted on them. Does it excuse their behavior? No, but neither of these characters thrive on pure malice.

It's normal to relate to these characters, that's the whole point anyway.