I wonder whether this series should also be tagged with "Cannibalism" or not.
I mean the Sister had killed and butchered a lot of people, and we also see bags full of what looked like small chunks of meat near a chopping board, on what seems like the Kitchen countertop (while MC was recalled the talk about his Sister butchering the people she killed). Also earlier, we do see the Sister cooking food there are well, before mouth-feeding it to MC, who immediately vomits it out.
Wonder if MC vomited the food out, because he knew it was human meat.