Since the dawn of time man has pondered over one question and one question only. "Who is best girl?"
Well today I have no answer to that but I believe I have discovered the worst.
Ladies and Gentlemen, I present Junji Ito's Tomie. While a collection of really good horror stories the girl herself Tomie is a level of trash waifu that, we as humans can not quantify.
How bad can it be you may ask. Well imagine a tsundere without the baka. A literal parasite that destroys your relationship with your waifus only to implant herself in her spot, drive you crazy then leave you before dying and exploding into more of her like a virus...
Still a pretty good read.