Well you offended.
1. I KNOW Kuchisake isn't a creepypasta.
2. I don't ship her and Jeff, I ship her and Slenderman.
3. Kuchisake Onna is BELIEVED to be real that so called 'Real' Kuchisake was a woman dressed as her and went on a killing spree. From what I heard. And Jeff isn't a knock off.
4. People who think Jeff was first is stupid. Kuchisake dates way back then and she's the original.
5. Slenderman is featured in a LOT of creepypasta but he was created by Victor. ALSO, yes I know about Noppera Bo.