The route is never randomised btw, its may look randomised, its not, it just some doors teleport to other rooms, I give you instructions on how to get through cemetery, Go Down, Up, Right, go Up the stairs, travel to the next Catacomb, Go Left, Down, Right, use miraheze wiki version for Lust Doll plus. [Tip, Rinny won't let you open coffins, maybe you can open them if Rinny is not there].
Here's the miraheze wiki link: https://lustdollplus.miraheze.org/wiki/Main_Page