- Edited
I agree that being reincarnated should affect the story in some way. Like the knowledge from past life being useful in certain situations, the MC having to adapt to this new world, or even the author giving a basic reason for the medieval stasis, as most transmigrations are to a medieval world.
My novel, Duality, isn't a system novel, but it has transmigration/cultivation.
MC was a soldier then a spy in his past life, and these experiences will have an effect further down the story.