Sorry for the late reply. I have been busy because it was Monday. Choosing the difficulty is based on the players, so I decided to divide it into several pieces to suit all. The easiest one is for those who love to play casually, and the hardest is for those who love to try hard.
Besides, I'm sorry to say this, but I merely have a recollection of the place you have been stuck in. Is that where you need to find the name of the Goddess of Nature?