@simplechild The point of the gallows was not to cause death by suffocation, instead the drop was suppose to be calculated based on height and weight of the person to snap their necks before they could suffocate.
I believe in the end no one was sure if the main girl Rena would have her memories when she woke up, as it's what kinda happened before. Also on the last chapter (97) last page (39) the translator notes that there are two missing pages that give the formal conclusion of the story. Namely if Rena...