Save
Here's my save just before the boss battle where you fight the orange man himself, save 16, (its a pain in the ass, use the healing herb once every 2 turns) because there is no post-end gameplay. The CG area is in save 15. As for the ending, I am pretty sure there is only one ending:
From what I can decipher, she becomes the leader of the farming church and bring prosperity to the nation (or something like that). Then she realizes her true ambition in life is to be the best magic farmer and leaves the country to embark on this journey. Then it somehow correlates to being like her bigger sister because they both left for their own desires or something like that? Her radish companion is also with her because reasons? It's a pretty cheesy ending but I assume more of this story is continued in the squeal of the game which can be found in page 5 of this thread.